BETA: Item Enchant Rework:
	* Implementing different groups for success rate of different item location slots.
	* Implementing different groups for magical weapons.
	* Item enchanting is totally retail like now.
		* Thanks to: Nos
	* Added new Util method to format double values.
	* Added new item debugging UI for item enchanting.
	* Reviewed by: Zoey76, Nos

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6120 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad