Merge the GO changes dfighter2->Master part 15

ADDED: GO_Chest (Implements type 3 GOs ), GO_FishingHole (Implements type 25 GOS), and GO_Lootable classes. GO_Lootable is the base class for lootable GOs, and GO_Chest, GO_FishingHole, and GO_FishingNode are derived from that.

Had to couple GO_FishingHole and GO_FishingNode to get it to build. However I plead not guilty by reason of temporary virtual insanity! Will refactor it a bit later.