WIP: move to pep517

.gitlab-ci.yml

Makefile

README.md

pyproject.toml

requirements-dev.txt

requirements.txt

setup.cfg

src/geostrapy/__init__.py

src/geostrapy/__main__.py

src/geostrapy/api.py

src/geostrapy/commands.py

src/geostrapy/gpx.py