This class encapsulates properties and methods to handle audio output thread on iOS/Android.
| audioOutputStarted | Returns true if audio output thread is working. | 
| muteState | Returns true if current device media volume is 0. | 
| stopAudioOutputOnMute | Set this property to true to make audio output thread automatically stop when device media volume is set to 0 and to start it again when volume is not 0. | 
| StartAudioOutput | Starts audio output thread on Android/iOS. | 
| StopAudioOutput | Stops audio thread on Android/iOS. | 
| OnMuteStateChanged | A delegate called whenever the device mute state is changed. |