ong ont precision go sdk modify (#133)

* go sdk support ont ong precision

* update readme md

* update sdk test

* add v2 md

* add v2 unit test

* fix parse ont event

* replace transferstate from ont to local

* update parse payload

* add parse transferFromV2 payload

* modify datat type

* add changelog

* modify go mod ontology version

* go fmt code

* modify parse payload

* update code

* update test case

* modify test net url

* update test case

* fix credential test case

* fix parse event decimal

CHANGELOG.md

@@ -0,0 +1,105 @@
+# ChangeLog
+
+## 1、Add ONT interface
+
+### 1、Get balance V2
+
+```
+ontSdk.Native.Ont.BalanceOfV2(address common.Address) (*big.Int, error)
+```
+
+### 2、 Transfer V2
+
+```
+ontSdk.Native.Ont.TransferV2(gasPrice, gasLimit uint64, from *Account, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+### 3、 Multiple Transfer V2
+
+```
+ontSdk.Native.Ont.MultiTransferV2(gasPrice, gasLimit uint64, states []*ont.State, signer *Account) (common.Uint256, error)
+```
+
+A multi transfer does more than one transfer of ONT in one transaction.
+
+### 4、Approve V2
+
+```
+ontSdk.Native.Ont.ApproveV2(gasPrice, gasLimit uint64, from *Account, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+### 5、 Allowance V2
+
+```
+ontSdk.Native.Ont.AllowanceV2(from, to common.Address) (*big.Int, error)
+```
+
+### 6、 Transfer From V2
+
+```
+ontSdk.Native.Ont.TransferFromV2(gasPrice, gasLimit uint64, sender *Account, from, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+## 2、Add ONG interface
+
+### 1、 Get balance V2
+
+```
+ontSdk.Native.Ong.BalanceOfV2(address common.Address) (*big.Int, error)
+```
+
+### 2、 Transfer V2
+
+```
+ontSdk.Native.Ong.TransferV2(gasPrice, gasLimit uint64, from *Account, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+### 3、 Multiple Transfer V2
+
+```
+ontSdk.Native.Ong.MultiTransferV2(gasPrice, gasLimit uint64, states []*ont.State, signer *Account) (common.Uint256, error)
+```
+
+A multi transfer does more than one transfer of ONG in one transaction.
+
+### 4、 Approve V2
+
+```
+ontSdk.Native.Ong.ApproveV2(gasPrice, gasLimit uint64, from *Account, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+### 5、 Approve Balance V2
+
+```
+ontSdk.Native.Ong.AllowanceV2(from, to common.Address) (*big.Int, error)
+```
+
+### 6、 TransferFrom V2
+
+```
+ontSdk.Native.Ong.TransferFrom(gasPrice, gasLimit uint64, sender *Account, from, to common.Address, amount *big.Int) (common.Uint256, error)
+```
+
+### 7、 Withdraw ONG V2
+
+```
+ontSdk.Native.Ong.WithdrawONG(gasPrice, gasLimit uint64, address *Account, amount *big.Int) (common.Uint256, error)
+```
+
+### 8、 Get unbound ONG V2
+
+```
+ontSdk.Native.Ong.UnboundONGV2(address common.Address) (*big.Int, error)
+```
+
+3、Modify TransferOng Event Parse
+```
+type TransferEventV2 struct {
+	FuncName string
+	From     string
+	To       string
+	Amount   *big.Int
+}
+
+ParseNativeTransferEventV2(event *sdkcom.NotifyEventInfo) (*TransferEventV2, error) 
+```