Pipenv support

[smravec]

Added Pipenv support to the init script. New to rust so better double check it if it does not break anything

[aaronvg]

Thanks for the PR, we'll merge this in soon. Have you been able to get BAML up and running?

[smravec]

Added the unit test just now

[smravec]

I was waiting for the ollama support, will try to set it up now

[hellovai]

Hi @smravec we actually removed any need on python environments as of this point!

it now works in any python env via:

> pip install baml-py
> baml-cli init
> baml-cli generate

baml-cli is now bundled in with baml-py and there's no longer a dependency on our CLI which makes the installation process so much easier for users (we hope).

your PR for adding pyenv and the struggle we had with merging it in was actually a key reason why we went down this path. Glad to share more thoughts if you'd like!