Initial commit: add .gitignore and README

contracts/interfaces/IPool.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+interface IPool {
+    function flashLoanSimple(
+        address receiverAddress,
+        address asset,
+        uint256 amount,
+        bytes calldata params,
+        uint16 referralCode
+    ) external;
+}
+