Map parser update

the RSE maps have a slightly different format to the FR/LG maps: they
have one less word in their map tile data. Accounting for this
difference, I can now search through the RSE roms with a fair amount of
accuracy.

Adding the datatypes for the 4 arrays (persons, warps, scripts,
signposts) seems to have pruned my positive matches more than I
expected. Further research is required to determine why.