Functions is deprecated

[mlim1972]

Great project!!!
Some libraries now use "tools" instead of functions since OpenAI is deprecating "functions". Inferix should support both to comply with both "functions" and "tools".

Ref:
https://platform.openai.com/docs/api-reference/chat/create

[YourTechBud]

Hey. Thanks for informing me of this.

I'm currently rewriting this project in rust and will add support for tools and functions.