Provide NDI Audio Capture

It would be great if Discord on Desktop could provide the audio input & output as an NDI stream for applications like OBS to capture the audio. The advantage of this is that push-to-talk would be captured correctly, and can capture the audio output from Discord without capturing other system audio (e.g. if playing music in the background).

Other apps, such as Skype, provide this feature, and would be great to have this in Discord for game streaming with Discord audio integrated.