Major map update

- Added The Spike.
- Added missing Hive floor.
- Added Robson Isle.
- Added Hrodmir Stone Golem Caves, Mammoth Shearing Factory, Northern
Quara Scout Cave.
- Added Gnalhound Cave (Zao Steppe).
- Added spawn to Port Hope Crocodile Cave (lower floors).
- Added missing content for missions in What A Foolish Quest/Sea of
Light Quest.
- Moved DHQ room to the correct position.
- Removed traces of World Changes in Venore and Ab'dendriel.
- Fix entrance for Yalahar Demons.
- Replaced doors in Vengoth Castle.