Removed pocketmine subdirectory, map PSR-4 style

src/network/NetworkInterface.php

@@ -0,0 +1,53 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+/**
+ * Network-related classes
+ */
+namespace pocketmine\network;
+
+/**
+ * Network interfaces are transport layers which can be used to transmit packets between the server and clients.
+ */
+interface NetworkInterface{
+
+	/**
+	 * Performs actions needed to start the interface after it is registered.
+	 */
+	public function start() : void;
+
+	/**
+	 * @param string $name
+	 */
+	public function setName(string $name) : void;
+
+	/**
+	 * Called every tick to process events on the interface.
+	 */
+	public function tick() : void;
+
+	/**
+	 * Gracefully shuts down the network interface.
+	 */
+	public function shutdown() : void;
+}