Update Includes 4

[kellsnc]

Changes:

• Fixed the player-specific CharObj2 structs that were offsets by 0x4 because of the previous CharObj2Base fix
• njPopMatrix(NJS_MATRIX_PTR m) -> njPopMatrix(int count)
• UpdateSetDateAndDelete -> UpdateSetDataAndDelete
• enum GravityDirectionType and variable GravityDirection (simplified gravity stuff for Cannon's Core), used by all objects that can be affected by gravity.
• LoadLevelManager
• ClearCollisionLists
• Updated struct EntityData2 (Contrary to SADX, SA2 does not have a pointer to CharObj2 in this as it is stored in ObjectMaster)
• Updated struct ObjectMaster (named the delayed display subs)
• Update struct LandTable (named missing stuff, ChunkModelCount -> VisibleModelCount)
• Update struct LevelHeader (anonymous_2 -> Free function)
• Named field_18 in struct COL (chunks bits, blockbits in sadx symbols)
• Add PerfectRings_StartCount (used for Cannon's Core)
• Fix njRotateZ pointing to njRotateY (my fault!)