add access control contracts
bjwswang opened this issue · comments
- ownable contract https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol
- basic access control
https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/AccessControl.sol
https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/IAccessControl.sol