Add @see docs so PhpStorm can see dynamic constructor usages

PhpStorm can't see constructor usages when the class name is dynamic. This causes maintenance problems because cross-referencing constructors called like this doesn't show up dynamic calls.

src/pocketmine/entity/Entity.php

@@ -285,6 +285,7 @@ abstract class Entity extends Location implements Metadatable, EntityIds{
 	public static function createEntity($type, Level $level, CompoundTag $nbt, ...$args) : ?Entity{
 		if(isset(self::$knownEntities[$type])){
 			$class = self::$knownEntities[$type];
+			/** @see Entity::__construct() */
 			return new $class($level, $nbt, ...$args);
 		}