daemon: split getAudioDeviceIndex

daemon/src/audio/alsa/alsalayer.cpp

daemon/src/audio/alsa/alsalayer.h

daemon/src/audio/audiolayer.cpp

daemon/src/audio/audiolayer.h

daemon/src/audio/jack/jacklayer.cpp

daemon/src/audio/jack/jacklayer.h

daemon/src/audio/opensl/opensllayer.h

daemon/src/audio/pulseaudio/pulselayer.cpp

daemon/src/audio/pulseaudio/pulselayer.h

daemon/src/client/android/configurationmanager.i

daemon/src/client/configurationmanager.cpp

daemon/src/client/configurationmanager.h

daemon/src/client/dbus/configurationmanager-introspec.xml

daemon/src/managerimpl.cpp

daemon/src/managerimpl.h