BETA: Moving Hellbound to Datapack:

	* New Datapack sided Hellbound Engine.
	* Using one class-loader for all Hellbound related scripts:
		* Faster loading and allows "communication" between scripts.
		* Allows disabling Hellbound completely by just removing the class-loader from scripts.cfg.
	* Static Hellbound's spawn data moved from SQL to XML.
	* Removed `HellboundManager`.
	* Reviewed all the Hellbound related scripts:
		* Finalized all classes and removed main method.
		* Added !JavaDocs.
		* Removed the usage of `QuestState`, it's not required at all at AIs.
		* Moved constructor at the top of the class after fields declaration.

Reviewed by: xban1x, UnAfraid, St3eT, Konstantinos