BETA: Rework of calculateDistance methods inside Util.
	* Moved a copy of them to L2Object, for easier usage.
	* Removed a lot of similar methods from L2Character.
	* Reviewed by: Zoey76, UnAfraid, jurchiks

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6243 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad