Explore poetry for dependency management

[lymichelle21]

Exploration to consider using poetry for dependency management and packaging: https://python-poetry.org/docs/

The poetry.lock file helps locks dependencies to specific versions to ensure repeatable builds. Poetry also reduces the need to set up virtual environments.

An initial exploratory PR can be found here: https://github.com/nasa/progpy/pull/225

• Note that it may be outdated and will still require updates to workflow files

Install poetry and activate virtual env:

pip install poetry 
poetry install
eval $(poetry env activate)