Add IERC5313.sol

.changeset/happy-socks-travel.md

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+---
+'openzeppelin-solidity': minor
+---
+
+`IERC5313`: Add an interface for EIP-5313 that is now final.

contracts/interfaces/IERC5313.sol

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+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+/// @title EIP-5313 Light Contract Ownership Standard
+interface IERC5313 {
+    /// @notice Get the address of the owner
+    /// @return The address of the owner
+    function owner() external view returns (address);
+}