feat: rename IContracts to IContext

src/interfaces/IContext.sol

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity ^0.8;
+
+/**
+ * @title IContext
+ * @notice Interface that combines methods used to interact with the context of the script
+ * can be used when passing the script into library functions.
+ */
+interface IContext {
+    function lookup(string memory contractName) external view returns (address);
+
+    function isCelo() external view returns (bool);
+
+    function isBaklava() external view returns (bool);
+
+    function isAlfajores() external view returns (bool);
+}