n64split v0.4a

v0.4a: music, collision, behavior fixes, more configs

• new config files: SM64 (J), SM64 (E), MK64 (U)
• add IA4 and IA1 graphics types
• add command line options:
  • generate large texture from MIO0 block
  • generate procedure table
  • specify output directory
• disassembler changes:
  • add more address detection and %hi/%lo macro insertion
  • handle BAL instructions
• add automatic config file detection based on header checksum
• corrected a lot of textures in the SM64 configs
• add music sequence bank and instrument set parsing
• add collision data parser and export to Wavefront OBJ
• add sm64walk tool to walk through SM64 level scripts
• correct SM64 behavior script lengths