Added:

• extra core options for per-channel audio volume customization libretro#605
  • supported systems/chips: YM2151, YM2203, YM2608, YM2610, AY8910, MSM5205, MSM6295, K054539, YMZ280B, YM3812, YM3526, GA20, NEOGEO, SYSTEM16, CPS1, CPS2, CAVE_68K, IGS_PGM, CAVE_CV1000, Namco System 2, Konami GX
• hiscores loading for all the datfile supported games. libretro#702.

(Please note these builds are outdated compared to the upstream repo.)