* Move PictoActor typedefs to z64actor.h
* OK, data imported
* Minor snap stuff
* Name most functions and variables
* Name most of object, apart from animations
* Document snap
* Fix actors to use the PictoActor struct
* Format
* Finish documenting EnGe1
* Finish documenting z_snap and related actors
* Format
* Review, format
* Name last couple of things
* bss
* Review
* Review
* bss
* Introduce z64snap.h, add SCREEN_TO_DEVICE macros
* Back to PROJECTED_TO_SCREEN
Derek Hensley