Renamed BadPacketException -> PacketHandlingException

this better describes the intent, instead of just vaguely describing a packet as 'bad'.

src/network/PacketHandlingException.php

@@ -0,0 +1,35 @@
+<?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);
+
+namespace pocketmine\network;
+
+/**
+ * Thrown when an error occurs during packet handling - for example, a message contained invalid options, packet shorter
+ * than expected, unknown packet, etc.
+ */
+class PacketHandlingException extends \RuntimeException{
+
+	public static function wrap(\Throwable $previous, ?string $prefix = null) : self{
+		return new self(($prefix !== null ? $prefix . ": " : "") . $previous->getMessage(), 0, $previous);
+	}
+}