Adding the possibility to set permanently the NoMachine Audio Adapter on macOS

ID: FR10R04033 Priority: Configuration
Products: NoMachine Device Services Target: 6
Status: Approved  

By default, the NoMachine Audio Adapter is set as default audio device when the user connects by NoMachine and the system audio interface is restored once the user disconnects.

A new configuration key on server side can be useful in some cases to allow administrators to force always keeping NoMachine Audio Adapter as default audio device.