[libretro] fixed configurable YM2612 DAC quantization option
[Gamecube/Wii]
.added configurable FPS display & toggleable fast-forward key combo (HOME +
MINUS with Wii controllers or R TRIGGER + START with Gamecube controller)
.minor code cleanup & optimizations
[Core/MCD] fixed H-INT vector handling when using Mode 1
[Core/VDP] fixed broken Mode 1 rendering (TMS99xx "Text" mode)
[Core/SG-1000] fixed SG-1000 internal RAM size (1KB instead of 2KB)
updated file headers