Handle Alsa AND Pulse audio

[yoyz]

Error from zurvan and yoyz

usr/bin/ld: debianrtaudio/RtAudio.o: référence au symbole non défini «pa_simple_write@@PULSE_0»
//usr/lib/x86_64-linux-gnu/libpulse-simple.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

If you launch a webbrowser or another audio apps, picoloop doesn't work or you don't have any sound on the other apps....

[yoyz]

this problem is in master branch and picoloop-0.67

[yoyz]

This should be fixed from the tag picoloop-0.73