Drop samples on Receive if volume is DSBVOLUME_MIN

- change "if(" to "if (" where I did it (there are many "if(" in files I
haven't touched)
- remove RemoveDeviceOnStop get/set from public interface
- add bit streaming toggle to filter/interface
- enforce bit streaming toggle in CheckMediaType
- remove unused GetAvailableAudioDevices method
- stop dropping samples in the WASAPI filter when volume is DSBVOLUME