feat: add ERC-1271 interface to the package

package.json

@@ -14,7 +14,8 @@
     "src/generated/abi.json",
     "src/generated/naymsDiamond.json",
     "forge-artifacts/LibConstants.sol/LibConstants.json",
-    "forge-artifacts/IERC20.sol/IERC20.json"
+    "forge-artifacts/IERC20.sol/IERC20.json",
+    "forge-artifacts/IERC1271.sol/IERC1271.json"
   ],
   "scripts": {
     "prettier": "yarn prettier:test && yarn prettier:src && yarn prettier:script",

src/init/InitDiamond.sol

@@ -11,8 +11,8 @@ import { LibAdmin } from "../libs/LibAdmin.sol";
 import { LibACL } from "../libs/LibACL.sol";
 import { LibInitDiamond } from "../libs/LibInitDiamond.sol";
 import { LibEIP712 } from "../libs/LibEIP712.sol";
-import { IERC165 } from "../interfaces/IERC165.sol";
-import { IERC173 } from "../interfaces/IERC173.sol";
+import { IERC165 } from "lib/diamond-2-hardhat/contracts/interfaces/IERC165.sol";
+import { IERC173 } from "lib/diamond-2-hardhat/contracts/interfaces/IERC173.sol";
 import { IERC20 } from "../interfaces/IERC20.sol";
 import { FeeSchedule } from "../shared/FreeStructs.sol";
 

src/interfaces/IERC1271.sol

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1271.sol)
+
+pragma solidity ^0.8.20;
+
+/**
+ * @dev Interface of the ERC1271 standard signature validation method for
+ * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
+ */
+interface IERC1271 {
+    /**
+     * @dev Should return whether the signature provided is valid for the provided data
+     * @param hash      Hash of the data to be signed
+     * @param signature Signature byte array associated with _data
+     */
+    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
+}