Added typedefs: mapsec_t, metloc_t, and variants for MAPSEC and METLOC values. There are some rough edges that could do with smoothing out, but for now, this gets us close to ideal with a ROM that compares equal.
Per feedback, all typedefs to mention the underlying type within the typedef name. The documentation comments reflect and explain the naming convention.
Updated comments to reflect the fact that we're no longer using SET8 for a Pokemon's met locations, in favor of a new macro (added by this PR) that adjusts to match the width of whatever is being set.
Command used for the job:
egrep -rl ' $' --include *.c --include *.h --include *.s --include *.inc --include *.txt * | xargs sed -i 's/\s\+$//g'
Credits to Grant Murphy from Stack Overflow.
Documents everything related to UnkStruct_08625388, names HasCheckPage functions, fixes mislabeled Brendan/May headers, and adds header count to pokenav_unk_3
Wally and Prof. Birch are skipped. Wally has a variable location, and Prof Birch (despite being listed as .v1 = 0, which is Littleroot) is actually listed as location unknown in the pokenav. Rival is also skipped, as they dont have a location field and are also listed as unknown
