Night of many changes

-Regroups rock objects
---Changes rock to basalt
---Adds limestone rock
---Adds gabbro rock
-Adds rm_cave
-Adds max health upgrade
-Adds max oxygen updrade
-Adds max oxygen and max health box spawning cheats
-Improves water behaviour
-Alters air bubble behaviour slightly
-Alters player movement code
-Overhauls debug and error system
-Changes item and upgrade sounds
-Alters first rooms slightly