log-driver.php: split up log driver

inc/Data/Driver/LogDriver.php

@@ -0,0 +1,22 @@
+<?php
+namespace Vichan\Data\Driver;
+
+defined('TINYBOARD') or exit;
+
+
+interface LogDriver {
+	public const EMERG = \LOG_EMERG;
+	public const ERROR = \LOG_ERR;
+	public const WARNING = \LOG_WARNING;
+	public const NOTICE = \LOG_NOTICE;
+	public const INFO = \LOG_INFO;
+	public const DEBUG = \LOG_DEBUG;
+
+	/**
+	 * Log a message if the level of relevancy is at least the minimum.
+	 *
+	 * @param int $level Message level. Use Log interface constants.
+	 * @param string $message The message to log.
+	 */
+	public function log(int $level, string $message): void;
+}