Add L2 reverse registrar contract

contracts/reverseRegistrar/IL2ReverseRegistrar.sol

@@ -0,0 +1,55 @@
+pragma solidity >=0.8.4;
+
+interface IL2ReverseRegistrar {
+    function setName(string memory name) external returns (bytes32);
+
+    function setNameForAddr(
+        address addr,
+        string memory name
+    ) external returns (bytes32);
+
+    function setNameForAddrWithSignature(
+        address addr,
+        string memory name,
+        uint256 inceptionDate,
+        bytes memory signature
+    ) external returns (bytes32);
+
+    function setNameForAddrWithSignatureAndOwnable(
+        address contractAddr,
+        address owner,
+        string memory name,
+        uint256 inceptionDate,
+        bytes memory signature
+    ) external returns (bytes32);
+
+    function setText(
+        string calldata key,
+        string calldata value
+    ) external returns (bytes32);
+
+    function setTextForAddr(
+        address addr,
+        string calldata key,
+        string calldata value
+    ) external returns (bytes32);
+
+    function setTextForAddrWithSignature(
+        address addr,
+        string calldata key,
+        string calldata value,
+        uint256 inceptionDate,
+        bytes memory signature
+    ) external returns (bytes32);
+
+    function setTextForAddrWithSignatureAndOwnable(
+        address contractAddr,
+        address owner,
+        string calldata key,
+        string calldata value,
+        uint256 inceptionDate,
+        bytes memory signature
+    ) external returns (bytes32);
+
+    function node(address addr) external view returns (bytes32);
+}

contracts/reverseRegistrar/L2ReverseClaimer.sol

@@ -0,0 +1,21 @@
+//SPDX-License-Identifier: MIT
+pragma solidity >=0.8.17 <0.9.0;
+
+import {ENS} from "../registry/ENS.sol";
+import {IL2ReverseRegistrar} from "../reverseRegistrar/IL2ReverseRegistrar.sol";
+
+contract L2ReverseClaimer {
+    constructor(
+        address l2ReverseRegistrarAddr,
+        ENS reverseRegistrar,
+        address claimant
+    ) {
+        IL2ReverseRegistrar reverseRegistrar = IL2ReverseRegistrar(
+            l2ReverseRegistrarAddr
+        );
+        //reverseRegistrar.setName(claimant);
+    }
+}
+
+// TODO: do we need a way of claiming a reverse node
+// so that contracts can delegate ownership to an EoA/Smartcontract?