When disassembling a group of functions, sometimes there are other
functions known in advance. By passing in a list called stop_at to
gbz80disasm, it is possible to prevent disassembled asm from running on
for longer than necessary.
This updates the automatic parsing of main.asm to catch cases of INCBINs
pulling in files that end in .asm, .lz, .1bpp, and .2bpp. This is
necessary because otherwise the parser tries to figure out the start and
end addresses expressed on the INCBIN line, details not present on these
types of lines in the asm.
Asm and Asm.insert_all are now back in working condition.
This is an extra option that is on by default for gbz80disasm, which is
useful in situations where you may not want the last address to be
included (like if the output of the disassembler is going to be sent to
to_asm anyway).
