Add optimization for EnumerableSet (#2588)
Add optimization for EnumerableSet (#2588)

Co-authored-by: Reason <f219cc0614ae6860f43a3cd84b5cf31fc312cd9d@Lee.com>
OpenZeppelin/openzeppelin-contracts,OpenZeppelin/zeppelin-solidity,OpenZeppelin/openzeppelin-contracts,OpenZeppelin/zeppelin-solidity,OpenZeppelin/openzeppelin-contracts