Add recording feature

[ibc]

By using the MediaRecorder helper of aiortc.

We should figure out an API that, given a consumer.track, allows the user to record such a recv track to a file with a given path or better: get a Node Uint8Array with the captured data so the user can store or use it in their preferred way.

[jymot]

Awesome!! When will this feature be available?

[jmillan]

We are quite busy these days and cannot provide an ETA for this feature right now but will update here whenever we start with it.

[doublex]

+1

[mkhahani]

+1

[ankit-chotaliya]

+1