Add VOICE_PERFORMANCE as a audio source option

[tekuseacc]

I would like to thank you for this nice lite Foss app . I am using it for recording on many android devices in some devices some settings enhance the mic quality. I found that using VOICE_PERFORMANCE increases the gain in some mics and some devices using other apps and I would like to have that option if possible in recording studio app too

https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#VOICE_PERFORMANCE