Add Galadriel LLM Inference Provider

[dontAskVI]

Overview:
This PR introduces the Galadriel LLM Inference as a new mode provider to the Eliza project, enhancing its capabilities for autonomous AI agents. The addition includes configuration setup, integration into the existing provider framework, and necessary type definitions.

Changes:

1. Configuration:

   • `.env.example`:
     • Added `GALADRIEL_API_KEY` variable to facilitate configuration of the Galadriel provider.

2. Provider Integration:

   • `index.ts`:
     • Registered Galadriel as a new model provider option, enabling its selection and usage within the application.
   • `models.ts`:
     • Defined Galadriel-specific settings and model mappings, ensuring seamless integration with existing models.
   • `types.ts`:
     • Added Galadriel to the `ModelProviderName` enum and updated the `Models` type to include Galadriel configurations.

3. Implementation:

   • `generation.ts`:
     • Implemented the case for Galadriel in the `generateText` function, handling API interactions and response processing.

Testing:

• Verified that the Galadriel provider integrates correctly by running manual local tests.

Documentation:

• No updates

Notes:

• Ensure that the `GALADRIEL_API_KEY` is securely managed and not exposed in public repositories.

Links:

• Get free API key: https://dashboard.galadriel.com/
• Galadriel homepage: https://galadriel.com/