feat: Add foundry environment and CI

foundry/lib/forge-std/src/Base.sol

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.6.2 <0.9.0;
+
+import {StdStorage} from "./StdStorage.sol";
+import {Vm, VmSafe} from "./Vm.sol";
+
+abstract contract CommonBase {
+    // Cheat code address, 0x7109709ECfa91a80626fF3989D68f67F5b1DD12D.
+    address internal constant VM_ADDRESS = address(uint160(uint256(keccak256("hevm cheat code"))));
+    // console.sol and console2.sol work by executing a staticcall to this address.
+    address internal constant CONSOLE = 0x000000000000000000636F6e736F6c652e6c6f67;
+    // Used when deploying with create2, https://github.com/Arachnid/deterministic-deployment-proxy.
+    address internal constant CREATE2_FACTORY = 0x4e59b44847b379578588920cA78FbF26c0B4956C;
+    // Default address for tx.origin and msg.sender, 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38.
+    address internal constant DEFAULT_SENDER = address(uint160(uint256(keccak256("foundry default caller"))));
+    // Address of the test contract, deployed by the DEFAULT_SENDER.
+    address internal constant DEFAULT_TEST_CONTRACT = 0x5615dEB798BB3E4dFa0139dFa1b3D433Cc23b72f;
+    // Deterministic deployment address of the Multicall3 contract.
+    address internal constant MULTICALL3_ADDRESS = 0xcA11bde05977b3631167028862bE2a173976CA11;
+    // The order of the secp256k1 curve.
+    uint256 internal constant SECP256K1_ORDER =
+        115792089237316195423570985008687907852837564279074904382605163141518161494337;
+
+    uint256 internal constant UINT256_MAX =
+        115792089237316195423570985008687907853269984665640564039457584007913129639935;
+
+    Vm internal constant vm = Vm(VM_ADDRESS);
+    StdStorage internal stdstore;
+}
+
+abstract contract TestBase is CommonBase {}
+
+abstract contract ScriptBase is CommonBase {
+    VmSafe internal constant vmSafe = VmSafe(VM_ADDRESS);
+}