Add missing voice macros

[huderlem]

From Kermalis:

0 = regular
0x8 = fixed
0x10 = reverse playback
0x18 = reverse playback fixed
0x20 = compressed
0x28 = compressed fixed
0x30 = compressed reversed
0x38 = compressed reversed fixed
0x40 = multi instrument
0x80 = drum

The first byte of a voice definition corresponds to the info above. Currently, pokeruby does not have macros for all of these, but the audio engine probably supports them all. Add the ones that are supported.