wasapi:
- fixed memory corruption if format is set to non-interlieved and mono <> stereo mini-mixer is used for to convert mono to stereo (conversion is done due to WASAPI limitation)
- made WASAPI fully passing patest_wire.c (full-duplex combinations) for shared and exclusive modes
- if WASAPI device failed to open due to unsupported format it will not crash top PA layer anymore
- improved full-duplex mode for shared/exclusive (although exclusive full-duplex mode still produces audio glitches due to difference in input/output device buffer size due to unknown WASAPI reason, with shared mode all is ok)
- exclusive mode will now work with 1 channel audio always, even if it is not supported by WASAPI natively (we use own mono <> stereo mini-mixer)