feat(SpokePoolPeriphery): Support multiple exchanges

contracts/Create2Factory.sol

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity ^0.8.0;
+
+import { Create2 } from "@openzeppelin/contracts/utils/Create2.sol";
+import { Lockable } from "./Lockable.sol";
+
+/**
+ * @title Create2Factory
+ * @notice Deploys a new contract via create2 at a deterministic address and then atomically initializes the contract
+ * @dev Contracts designed to be deployed at deterministic addresses should initialize via a non-constructor
+ * initializer to maintain bytecode across different chains.
+ * @custom:security-contact [email protected]
+ */
+contract Create2Factory is Lockable {
+    /// @notice Emitted when the initialization to a newly deployed contract fails
+    error InitializationFailed();
+
+    /**
+     * @notice Deploys a new contract via create2 at a deterministic address and then atomically initializes the contract
+     * @param amount The amount of ETH to send with the deployment. If this is not zero then the contract must have a payable constructor
+     * @param salt The salt to use for the create2 deployment. Must not have been used before for the bytecode
+     * @param bytecode The bytecode of the contract to deploy
+     * @param initializationCode The initialization code to call on the deployed contract
+     */
+    function deploy(
+        uint256 amount,
+        bytes32 salt,
+        bytes calldata bytecode,
+        bytes calldata initializationCode
+    ) external nonReentrant returns (address) {
+        address deployedAddress = Create2.deploy(amount, salt, bytecode);
+        (bool success, ) = deployedAddress.call(initializationCode);
+        if (!success) revert InitializationFailed();
+        return deployedAddress;
+    }
+}