feat: add MULTICALL3_ADDRESS in CommonBase (#266)

Author: PaulRBerg

src/Base.sol

@@ -13,6 +13,8 @@ abstract contract CommonBase {
     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;
 
     uint256 internal constant UINT256_MAX =
         115792089237316195423570985008687907853269984665640564039457584007913129639935;