Add NVIDIA LLMs

[Jpickard1]

Describe the solution you'd like The available LLMs should show LLMs from NVIDIA as well

Additional context This will also require a new place to insert the NVIDIA API key

Requires

• [ ] change to backend to specify which LLMs from NVIDIA
• [ ] change to the frontend to allow location to specify either API key
• [ ] change to turn on mechanism to allow powerup without needing API key

[Jpickard1]

/api/llm/apikey endpoints was created in endpoints.py

[Jpickard1]

added a location in the gui to enter api key:

• [ ] change to backend to specify which LLMs from NVIDIA
• [x] change to the frontend to allow location to specify either API key
• [ ] change to turn on mechanism to allow powerup without needing API key

[Jpickard1]

• [x] change to backend to specify which LLMs from NVIDIA https://github.com/Jpickard1/BRAD/commit/861b57928eafddd7003b250aad7b96711bf38408
• [x] change to the frontend to allow location to specify either API key
• [ ] change to turn on mechanism to allow powerup without needing API key