✨ Add support for EIP-2935 serving historical block hashes

[0xSooki]

Adding support for https://eips.ethereum.org/EIPS/eip-2935, a function to serve the latest 8191 block hashes, reverting to the blockhash function in Solidity if within the latest 256 to save gas.

https://github.com/OpenZeppelin/openzeppelin-contracts/blob/32e7a6ffbc5af9ab0e6dfdbc58508511d0f0b4a2/contracts/utils/Blockhash.sol#L4

[Vectorized]

Thanks, will do.

[0xClandestine]

Agree, goes hand and hand with the below issue:

#1449

[Vectorized]

Completed in #1470.