configure_audio: User-configuratble option to enable/disable audio stretching

src/core/settings.cpp

@@ -24,6 +24,7 @@ void Apply() {
     VideoCore::g_scaled_resolution_enabled = values.use_scaled_resolution;
 
     AudioCore::SelectSink(values.sink_id);
+    AudioCore::EnableStretching(values.enable_audio_stretching);
 
 }
 

src/core/settings.h

@@ -81,6 +81,7 @@ struct Values {
 
     // Audio
     std::string sink_id;
+    bool enable_audio_stretching;
 
     // Debugging
     bool use_gdbstub;