The bulk of the data is in the same format as ORAS, so most of the
changes were just tracking down where files moved to.
The code was a mess, and is still a mess. Oh, well.
- Made pretty good progress on dumping ORAS encounters; remaining work
largely boils down to figuring out names for individual zones.
- Hacked the CLIM decoder to also work with SUMO's slightly modified box
sprite format, FLIM.
- Added a Nintendo-flavored ETC1 decoder; this is the format used for
Pokédex sprites in SUMO.
- Cleaned up sprite dumping a wee bit.
