Review process for new integrations in livekit/agents

Hi, thank you for your submission.

I created an FAQ for this kind of request:

In particular, the final paragraph:

Don’t block your users whilst waiting for PR approval: we encourage contributors to develop and host plugins outside of LiveKit prior to approval, along with an integration guide - that way it helps us gauge organic interest and better understand the plugin use cases. If you have hosted the plugin and integration guide yourself, please include this information in your PR.