refactor(contracts): make portals and relays inherit "input relay"

* Make portals and relays inherit `InputRelay`
* Make portals and relays interfaces inherit `IInputRelay`

onchain/rollups/contracts/portals/ERC1155BatchPortal.sol

@@ -15,18 +15,18 @@ pragma solidity ^0.8.8;
 import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
 
 import {IERC1155BatchPortal} from "./IERC1155BatchPortal.sol";
-import {Portal} from "./Portal.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title ERC-1155 Batch Transfer Portal
 ///
 /// @notice This contract allows anyone to perform batch transfers of
 /// ERC-1155 tokens to a DApp while informing the off-chain machine.
-contract ERC1155BatchPortal is Portal, IERC1155BatchPortal {
+contract ERC1155BatchPortal is InputRelay, IERC1155BatchPortal {
     /// @notice Constructs the portal.
     /// @param _inputBox The input box used by the portal
-    constructor(IInputBox _inputBox) Portal(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function depositBatchERC1155Token(
         IERC1155 _token,

onchain/rollups/contracts/portals/ERC1155SinglePortal.sol

@@ -15,18 +15,18 @@ pragma solidity ^0.8.8;
 import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
 
 import {IERC1155SinglePortal} from "./IERC1155SinglePortal.sol";
-import {Portal} from "./Portal.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title ERC-1155 Single Transfer Portal
 ///
 /// @notice This contract allows anyone to perform single transfers of
 /// ERC-1155 tokens to a DApp while informing the off-chain machine.
-contract ERC1155SinglePortal is Portal, IERC1155SinglePortal {
+contract ERC1155SinglePortal is InputRelay, IERC1155SinglePortal {
     /// @notice Constructs the portal.
     /// @param _inputBox The input box used by the portal
-    constructor(IInputBox _inputBox) Portal(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function depositSingleERC1155Token(
         IERC1155 _token,

onchain/rollups/contracts/portals/ERC20Portal.sol

@@ -15,18 +15,18 @@ pragma solidity ^0.8.8;
 import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 
 import {IERC20Portal} from "./IERC20Portal.sol";
-import {Portal} from "./Portal.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title ERC-20 Portal
 ///
 /// @notice This contract allows anyone to perform transfers of
 /// ERC-20 tokens to a DApp while informing the off-chain machine.
-contract ERC20Portal is Portal, IERC20Portal {
+contract ERC20Portal is InputRelay, IERC20Portal {
     /// @notice Constructs the portal.
     /// @param _inputBox The input box used by the portal
-    constructor(IInputBox _inputBox) Portal(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function depositERC20Tokens(
         IERC20 _token,

onchain/rollups/contracts/portals/ERC721Portal.sol

@@ -15,18 +15,18 @@ pragma solidity ^0.8.8;
 import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
 
 import {IERC721Portal} from "./IERC721Portal.sol";
-import {Portal} from "./Portal.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title ERC-721 Portal
 ///
 /// @notice This contract allows anyone to perform transfers of
 /// ERC-721 tokens to a DApp while informing the off-chain machine.
-contract ERC721Portal is Portal, IERC721Portal {
+contract ERC721Portal is InputRelay, IERC721Portal {
     /// @notice Constructs the portal.
     /// @param _inputBox The input box used by the portal
-    constructor(IInputBox _inputBox) Portal(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function depositERC721Token(
         IERC721 _token,

onchain/rollups/contracts/portals/EtherPortal.sol

@@ -13,21 +13,21 @@
 pragma solidity ^0.8.8;
 
 import {IEtherPortal} from "./IEtherPortal.sol";
-import {Portal} from "./Portal.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title Ether Portal
 ///
 /// @notice This contract allows anyone to perform transfers of
 /// Ether to a DApp while informing the off-chain machine.
-contract EtherPortal is Portal, IEtherPortal {
+contract EtherPortal is InputRelay, IEtherPortal {
     /// @notice Raised when the Ether transfer fails.
     error EtherTransferFailed();
 
     /// @notice Constructs the portal.
     /// @param _inputBox The input box used by the portal
-    constructor(IInputBox _inputBox) Portal(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function depositEther(
         address _dapp,

onchain/rollups/contracts/portals/IERC1155BatchPortal.sol

@@ -12,11 +12,11 @@
 
 pragma solidity ^0.8.8;
 
-import {IPortal} from "./IPortal.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
 
 /// @title ERC-1155 Batch Transfer Portal interface
-interface IERC1155BatchPortal is IPortal {
+interface IERC1155BatchPortal is IInputRelay {
     // Permissionless functions
 
     /// @notice Transfer a batch of ERC-1155 tokens to a DApp and add an input to

onchain/rollups/contracts/portals/IERC1155SinglePortal.sol

@@ -12,11 +12,11 @@
 
 pragma solidity ^0.8.8;
 
-import {IPortal} from "./IPortal.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
 
 /// @title ERC-1155 Single Transfer Portal interface
-interface IERC1155SinglePortal is IPortal {
+interface IERC1155SinglePortal is IInputRelay {
     // Permissionless functions
 
     /// @notice Transfer an ERC-1155 token to a DApp and add an input to

onchain/rollups/contracts/portals/IERC20Portal.sol

@@ -12,11 +12,11 @@
 
 pragma solidity ^0.8.8;
 
-import {IPortal} from "./IPortal.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 
 /// @title ERC-20 Portal interface
-interface IERC20Portal is IPortal {
+interface IERC20Portal is IInputRelay {
     // Permissionless functions
 
     /// @notice Transfer ERC-20 tokens to a DApp and add an input to

onchain/rollups/contracts/portals/IERC721Portal.sol

@@ -12,11 +12,11 @@
 
 pragma solidity ^0.8.8;
 
-import {IPortal} from "./IPortal.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
 
 /// @title ERC-721 Portal interface
-interface IERC721Portal is IPortal {
+interface IERC721Portal is IInputRelay {
     // Permissionless functions
 
     /// @notice Transfer an ERC-721 token to a DApp and add an input to

onchain/rollups/contracts/portals/IEtherPortal.sol

@@ -12,10 +12,10 @@
 
 pragma solidity ^0.8.8;
 
-import {IPortal} from "./IPortal.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 
 /// @title Ether Portal interface
-interface IEtherPortal is IPortal {
+interface IEtherPortal is IInputRelay {
     // Permissionless functions
 
     /// @notice Transfer Ether to a DApp and add an input to

onchain/rollups/contracts/relays/DAppAddressRelay.sol

@@ -13,18 +13,18 @@
 pragma solidity ^0.8.8;
 
 import {IDAppAddressRelay} from "./IDAppAddressRelay.sol";
-import {Relay} from "./Relay.sol";
+import {InputRelay} from "../inputs/InputRelay.sol";
 import {IInputBox} from "../inputs/IInputBox.sol";
 import {InputEncoding} from "../common/InputEncoding.sol";
 
 /// @title DApp Address Relay
 ///
 /// @notice This contract allows anyone to inform the off-chain machine
 /// of the address of the DApp contract in a trustless and permissionless way.
-contract DAppAddressRelay is Relay, IDAppAddressRelay {
+contract DAppAddressRelay is InputRelay, IDAppAddressRelay {
     /// @notice Constructs the relay.
     /// @param _inputBox The input box used by the relay
-    constructor(IInputBox _inputBox) Relay(_inputBox) {}
+    constructor(IInputBox _inputBox) InputRelay(_inputBox) {}
 
     function relayDAppAddress(address _dapp) external override {
         bytes memory input = InputEncoding.encodeDAppAddressRelay(_dapp);

onchain/rollups/contracts/relays/IDAppAddressRelay.sol

@@ -12,10 +12,10 @@
 
 pragma solidity ^0.8.8;
 
-import {IRelay} from "./IRelay.sol";
+import {IInputRelay} from "../inputs/IInputRelay.sol";
 
 /// @title DApp Address Relay interface
-interface IDAppAddressRelay is IRelay {
+interface IDAppAddressRelay is IInputRelay {
     // Permissionless functions
 
     /// @notice Add an input to a DApp's input box with its address.