Callbacks to match Raw Agent WebSockets API

[CarsonStevensAI]

Feature Description

I'm referencing this API here. There are certain events that you can't capture from the Conversation object like you can from the raw agent websocket api. It would be nice if all the same events could be reference since they're probably being emitted and either ignored or hidden

https://github.com/elevenlabs/elevenlabs-python/blob/main/src/elevenlabs/conversational_ai/conversation.py

API reference
Agent WebSockets

Use Case

Be able to build more reactive UIs using your SDK.

Alternatives Considered

Using the raw Agents Websockets API

Additional Context

No response