Fix loading messages
Moving item tooltips from interface to item header
fix missing sizeof

must have gotten lucky while testing :D
ItemTooltips: working around insane copy implementation and fixing missing tooltis

only special tooltips exist in the tolltip.2da. otherwise use the item name. We will use the generic name if the item is not identified.
moving the remainder of the item tables to ItemMgr

1. item exclusion table
2. item dialog table