feat: Integrate Livepeer LLM provider

[its-DeFine]

Relates to

Risks

Low.

Background

Extends Livepeer as provider.

What does this PR do?

-Integrates Livepeer as LLM provider -updates Livepeer img gen with retries. -updates Livepeer relevant docs.

What kind of change is this?

Features (non-breaking change which adds functionality)

Documentation changes needed?

Already implemented.

Testing

Where should a reviewer start?

Detailed testing steps

[Titan-Node]

Once this PR gets merged https://github.com/UD1sto/eliza-livepeer-integration/pull/4 we are good to go.

Tested different models for LLM and Image in the .env, tested different gateways both https and http, everything checks out.