Switch to Poetry, package clean up.

.gitignore

CHANGES.md

INSTALL.md

INSTALL.rst

MANIFEST.in

Makefile

README.md

boxmox/_console.py

boxmox/_installation.py

boxmox/_site_specific.py

boxmox/hub.py

pyproject.toml

setup.cfg

setup.py

src/boxmox/.gitignore

src/boxmox/__init__.py

src/boxmox/data.py

src/boxmox/experiment.py

src/boxmox/fluxes.py

src/boxmox/plotter.py