Added Constants.sol to make new deployments easier

src/utils/Constants.sol

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: MIT
+/*
+ * The EVM Interpreter was deployed at deterministic address using the `create2` method from the Universal Factory,
+ * once solidity's version can change the `Intepreter.sol` creation code, the constants below are useful to deploy
+ * the interpreter at a deterministic address in any network that also contains the Universal Factory Contract.
+ *
+ * The interpreter can be easily deployed as demonstrated below:
+ * ```solidity
+ * import {IUniversalFactory} from "universal-factory/src/interfaces/IUniversalFactory.sol";
+ * import {INTERPRETER_ADDRESS, INTERPRETER_CREATE2_SALT, INTERPRETER_CREATION_CODE} from "evm-interpreter/src/utils/Constants.sol";
+ * 
+ * IUniversalFactory factory = IUniversalFactory(0x0000000000001C4Bf962dF86e38F0c10c7972C6E);
+ * address interpreter = factory.create2(INTERPRETER_CREATE2_SALT, INTERPRETER_CREATION_CODE);
+ * require(interpreter == INTERPRETER_ADDRESS);
+ * ```
+ *
+ * For more information on how to use the Universal Factory, see:
+ * - https://github.com/Analog-Labs/universal-factory
+ */
+pragma solidity >=0.7.0 <0.9.0;
+
+/**
+ * @dev The address of UniversalFactory, which deployed this contract using the `create2` method.
+ */
+address constant INTERPRETER_CREATE2_DEPLOYER = 0x0000000000001C4Bf962dF86e38F0c10c7972C6E;
+
+/**
+ * @dev EIP-1014 CREATE2 salt used to deploy the interpreter.
+ * reference: https://eips.ethereum.org/EIPS/eip-1014
+ */
+bytes32 constant INTERPRETER_CREATE2_SALT = 0xc8530e31f6ca0170eadd291ef7444560d457094dc3888d929e3cd76bcd4acf7f;
+
+/**
+ * @dev The address of which the Interpreter was deployed, can be computed as:
+ * `address(uint160(uint256(keccak256(abi.encodePacked(bytes1(0xff), INTERPRETER_CREATE2_DEPLOYER, INTERPRETER_CREATE2_SALT, INTERPRETER_INITCODE_HASH)))))`.
+ */
+address constant INTERPRETER_ADDRESS = 0x0000000000001e3F4F615cd5e20c681Cf7d85e8D;
+
+/**
+ * @dev The codehash of the Interpreter, must be the same regardless the address or solidity version.
+ */
+bytes32 constant INTERPRETER_CODEHASH = 0xaa65624ae6c78a7f070d28f3aa36674e5c835a708ad1422a45530c18d83b725e;
+
+/**
+ * @dev The hash of the initicode.
+ * INTERPRETER_INITCODE_HASH == keccak256(INTERPRETER_CREATION_CODE);
+ */
+bytes32 constant INTERPRETER_INITCODE_HASH = 0x9fbdeb778ae8c9daa6db3f5c8d55d2c4bbaba059382891af1cbac6562f88bbe5;
+
+/**
+ * @dev This is the `type(Interpreter).creationCode` used to deploy the interpreter at the `INTERPRETER_ADDRESS`.
+ * defined as a constant to allow it to be deployed at the same address using different solidity versions.
+ */
+bytes constant INTERPRETER_CREATION_CODE = 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