move ERC20Votes and ERC20FlashMint out of draft

CHANGELOG.md

@@ -5,6 +5,7 @@
 * `ERC20Votes`: add a new extension of the `ERC20` token with support for voting snapshots and delegation. This extension is compatible with Compound's `Comp` token interface. ([#2632](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2632))
  * Enumerables: Improve gas cost of removal in `EnumerableSet` and `EnumerableMap`.
  * Enumerables: Improve gas cost of lookup in `EnumerableSet` and `EnumerableMap`.
+ * `ERC20Votes` is no longer marked as draft. ([#2673](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2673))) 
 
 ## 4.1.0 (2021-04-29)
 

contracts/mocks/ERC3156Mock.sol → contracts/mocks/ERC20FlashMintMock.sol

@@ -3,7 +3,7 @@
 pragma solidity ^0.8.0;
 
 
-import "../token/ERC20/extensions/draft-ERC20FlashMint.sol";
+import "../token/ERC20/extensions/ERC20FlashMint.sol";
 
 contract ERC20FlashMintMock is ERC20FlashMint {
     constructor (

contracts/mocks/ERC20VotesMock.sol

@@ -3,7 +3,7 @@
 pragma solidity ^0.8.0;
 
 
-import "../token/ERC20/extensions/draft-ERC20Votes.sol";
+import "../token/ERC20/extensions/ERC20Votes.sol";
 
 contract ERC20VotesMock is ERC20Votes {
     constructor (

contracts/token/ERC20/extensions/draft-ERC20Votes.sol → contracts/token/ERC20/extensions/ERC20Votes.sol

@@ -3,7 +3,7 @@
 pragma solidity ^0.8.0;
 
 import "./draft-ERC20Permit.sol";
-import "./draft-IERC20Votes.sol";
+import "./IERC20Votes.sol";
 import "../../../utils/math/Math.sol";
 import "../../../utils/math/SafeCast.sol";
 import "../../../utils/cryptography/ECDSA.sol";