[Roadmap] Add new OpenAI APIs

[dandansamax]

• [x] #355
• [x] Introduce Pydantic types

Add new OpenAI Models:

• [x] gpt-4-1106-preview #357
• [ ] gpt-4-vision-preview
• [x] gpt-3.5-turbo-1106 #357
• [ ] dall-e-3
• [ ] Text to speech

Update chat completion API:

• [x] #368
• [ ] Reproducible outputs
• [ ] Update function call API
• [x] Retries #355
• [x] Timeouts #355