make stream output working?!

[tischi]

Especially for gpt-4, which seems to be rather slow (#65) it would be great if we would manage to somehow implement the "stream" option of getting the response to work.

@haesleinhuepf do you know what the issue with the streaming mode is? Did you ever look into making it work?

[haesleinhuepf]

I never looked into it. It might be straightforward.