Simple AlsaHAL tests

1. List Selected HAL Controls
2. Get {label:'Master_Playback_Volume'}
3. Get[{tag:4},{tag:5}]
4. Get [4,5]


5. Set {label:'Master_Playback_Volume', value=[50]}
6. Set {tag: 4, val:5}
7. Set[{tag:4, val:25},{tag:5, val:25}]
8. Set[{tag:4, val:[55,45]},{tag:5, val:[45,55]}]]


9. Volume Ramp