contracts-bedrock: migrate ERC721 contracts to ISemver

Continue moving away from `Semver` in favor of the more
flexible `ISemver` contract.

packages/contracts-bedrock/semver-lock.json

@@ -30,6 +30,6 @@
   "src/periphery/op-nft/OptimistInviter.sol": "0xfdd5b9d45205ef9372ba37f7a6394724695e676d27a47cb154ee6e4148490013",
   "src/universal/OptimismMintableERC20.sol": "0x17fe6e955dc7e9e480e57bc62c227206838b204dcb660b8cb8f6f217319a22ba",
   "src/universal/OptimismMintableERC20Factory.sol": "0x684a9445515e3797722b211e2c0d6a94b6244d6fa028cd2825a31538ef2dc59c",
-  "src/universal/OptimismMintableERC721.sol": "0x49dc863caf3e002bf0c90b3af3873990fb282771f4c63735fd61a885b7873983",
-  "src/universal/OptimismMintableERC721Factory.sol": "0x502438b009bfaf0ab187914662468261f10446fd85d44a79b29cdaef7b4982ba"
+  "src/universal/OptimismMintableERC721.sol": "0x4c73bf8474fa7eb091796a4db7e57bc5f26d50a3d1cfcb78d5efa47ced5ced2b",
+  "src/universal/OptimismMintableERC721Factory.sol": "0x935fd97018b6ef10fa813d9d43ab7a77c80885f7a8d7feb430097645cb2abd2c"
 }
\ No newline at end of file

packages/contracts-bedrock/src/universal/OptimismMintableERC721.sol

@@ -5,14 +5,14 @@ import { ERC721Enumerable } from "@openzeppelin/contracts/token/ERC721/extension
 import { ERC721 } from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
 import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
 import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
-import { IOptimismMintableERC721 } from "./IOptimismMintableERC721.sol";
-import { Semver } from "../universal/Semver.sol";
+import { IOptimismMintableERC721 } from "src/universal/IOptimismMintableERC721.sol";
+import { ISemver } from "src/universal/ISemver.sol";
 
 /// @title OptimismMintableERC721
 /// @notice This contract is the remote representation for some token that lives on another network,
 ///         typically an Optimism representation of an Ethereum-based token. Standard reference
 ///         implementation that can be extended or modified according to your needs.
-contract OptimismMintableERC721 is ERC721Enumerable, IOptimismMintableERC721, Semver {
+contract OptimismMintableERC721 is ERC721Enumerable, IOptimismMintableERC721, ISemver {
     /// @inheritdoc IOptimismMintableERC721
     uint256 public immutable REMOTE_CHAIN_ID;
 
@@ -31,7 +31,10 @@ contract OptimismMintableERC721 is ERC721Enumerable, IOptimismMintableERC721, Se
         _;
     }
 
-    /// @custom:semver 1.2.0
+    /// @notice Semantic version.
+    /// @custom:semver 1.3.0
+    string public constant version = "1.3.0";
+
     /// @param _bridge        Address of the bridge on this network.
     /// @param _remoteChainId Chain ID where the remote token is deployed.
     /// @param _remoteToken   Address of the corresponding token on the other network.
@@ -45,7 +48,6 @@ contract OptimismMintableERC721 is ERC721Enumerable, IOptimismMintableERC721, Se
         string memory _symbol
     )
         ERC721(_name, _symbol)
-        Semver(1, 2, 0)
     {
         require(_bridge != address(0), "OptimismMintableERC721: bridge cannot be address(0)");
         require(_remoteChainId != 0, "OptimismMintableERC721: remote chain id cannot be zero");

packages/contracts-bedrock/src/universal/OptimismMintableERC721Factory.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { OptimismMintableERC721 } from "./OptimismMintableERC721.sol";
-import { Semver } from "./Semver.sol";
+import { OptimismMintableERC721 } from "src/universal/OptimismMintableERC721.sol";
+import { ISemver } from "src/universal/ISemver.sol";
 
 /// @title OptimismMintableERC721Factory
 /// @notice Factory contract for creating OptimismMintableERC721 contracts.
-contract OptimismMintableERC721Factory is Semver {
+contract OptimismMintableERC721Factory is ISemver {
     /// @notice Address of the ERC721 bridge on this network.
     address public immutable BRIDGE;
 
@@ -22,13 +22,16 @@ contract OptimismMintableERC721Factory is Semver {
     /// @param deployer    Address of the initiator of the deployment
     event OptimismMintableERC721Created(address indexed localToken, address indexed remoteToken, address deployer);
 
-    /// @custom:semver 1.3.0
+    /// @notice Semantic version.
+    /// @custom:semver 1.4.0
+    string public constant version = "1.4.0";
+
     /// @notice The semver MUST be bumped any time that there is a change in
     ///         the OptimismMintableERC721 token contract since this contract
     ///         is responsible for deploying OptimismMintableERC721 contracts.
     /// @param _bridge Address of the ERC721 bridge on this network.
     /// @param _remoteChainId Chain ID for the remote network.
-    constructor(address _bridge, uint256 _remoteChainId) Semver(1, 3, 0) {
+    constructor(address _bridge, uint256 _remoteChainId) {
         BRIDGE = _bridge;
         REMOTE_CHAIN_ID = _remoteChainId;
     }