removed unused animation/spritesheets
split & repacked patchcon sprites.
EntityAnimation8Dir: remove 3rd dimension "forms". fix to get 5th direction loading using new format.
EntitySpriteSet8Dir: removed code that loaded entites from the single sprite sheet.
SpriteLoader.spriteSheetNames to Entity.entityNames and changed to 1 dimenion array.
removed 4dir loading code and 4dir animations from SpriteLoader.
MapUtil.loadNPCs, fixed for new entity name format.