Eliminate dependence on most uniswap functions

lib_sol8/v3-periphery/contracts/interfaces/IERC20Metadata.sol

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.7.0;
+
+import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
+
+/// @title IERC20Metadata
+/// @title Interface for ERC20 Metadata
+/// @notice Extension to IERC20 that includes token metadata
+interface IERC20Metadata is IERC20 {
+    /// @return The name of the token
+    function name() external view returns (string memory);
+
+    /// @return The symbol of the token
+    function symbol() external view returns (string memory);
+
+    /// @return The number of decimal places the token has
+    function decimals() external view returns (uint8);
+}