Add support for live streaming

[TheNewAutonomy]

This is a broad task covering adding support for live streaming.

We know the media management supports global live streaming of 4K content.
We know we can create an NFT showing ownership of the livestream event.

What we want to do is to allow a live stream event to be created along with an NFT for managing fees and access. The idea is that the live stream organiser can manage access and collect fees from live stream events, distributing funds transparently the same as for non-live media assets.