Adding poetry for dependency management

Hey guys, Thanos told me about dependency inconsistencies across versions and I suggested to use poetry that handles virtual environment, dependency and versions tracking almost seemlessly. https://python-poetry.org/docs/

I wanted to send a PR on the "phil" branch but didn't find the requirements.txt Which version of python are you using ? 3.11?

I'll add in the README the few commands needed to use poetry.

Thanks!