Split autoqcm plugin from ptyx core

[wxgeo]

autoqcm plugin is now much larger than other plugins.
While ptyx core is quite stable and mature now, autoqcm is still under heavy development.

It would make sense to handle its development in a separate repository, and to be able to install ptyx core only.

[wxgeo]

For plugin architecture enhancement, some doc:

• https://python-poetry.org/docs/pyproject/#plugins
• Document difference between poetry plugins and entrypoints. python-poetry/poetry#658 (comment)
• https://docs.python.org/3/library/importlib.metadata.html
• https://github.com/sdruskat/poetry-entrypoints/blob/main/entrypoints/__main__.py

[wxgeo]

Done.