Specify OpenAI API Base url

[shuther]

Is your feature request related to a problem? Please describe.
I would like to use self hosted model or to leverage Azure endpoint.

Describe the solution you'd like
Be able to specify the openAI base url.

[sawka]

Thanks for your submission! This makes a lot of sense and should be straightforward to implement.

[sawka]

For our own reference, linking to the docs for how to provide the config for setting the baseurl for the package we're using:
https://pkg.go.dev/github.com/sashabaranov/go-openai#ClientConfig