dont use ambiguous characters in sfx_names
sound parsing actually works now

+ sorted out output semantics
+ cross-song label references
+ incbins
preprocessor: from_asm method and is_rgbasm_macro in command classes

enjoy this half-assed implementation
crystal: use rom.interval instead of rom_interval

rom_interval got broken when globals got nuked

it's probably a bad idea to keep the function around but it's supposed to work eventually
add some extra music command classes
fix spacing for pokered music command classes