FRCS - Knowledge Local and Half Drow

cleaned up the various knowledge (region) skills - changed various references to PRExxx Knowledge (Local) to  PRExxx TYPE=KnowledgeLocal and propogated this through various sources.
This propogation ideally would be pushed across all sources to allow compatibility with FRCS (which specifically FORGETs Knowledge (Local) ) - only needed if source would be used with FRCS.

Also updated some Half Drow bits