rtAudio 4.0.12 udpate for  win_cb

Updating to rtAudio 4.0.12 fixes crashes on starting the OF sound stream (AudioInputExample & AudioOutputExample) in #2344.

I updated the headers as well, so the libs for other platforms would need to be updated. Related to PR #2309

I think this is pretty important since I found it didn't work on 0.7.4 either ...