[FEATURE] Auto Egress support audio/video only parameter

[coonmoo]

Problem

We are using Auto Egress for our rooms with the tracks output.
We only want to record all audio tracks in a room and do not need the video tracks.
Video track upload consumes a lot of storage space and bandwidth.

Solution
It would be great if we could use the audio_only, video_only parameters in the Auto Egress request.

Alternatively as a more flexible solution I could imagine a track_filter parameter which would allow Auto Egress to only record the tracks matching the filter condition (based on track meta data).