switch to pyproject.toml

[zeromind]

Use pyproject.toml instead of setup.py.

• switch to pyproject.toml for dimclient, ndcli, and dim
• add separate make target to install dependencies for pytest as non-editable, as editable install via pip requires setup.py in EL8, which we do not need
  • adjust workflow to install non-editable pytest dependencies
• include dim command from move to pyproject.toml #266 as that seems useful, keeping manage_dim and manage_db commands for compatibility

The good(tm) names on PyPI were already taken, so I had to get creative:

• dim => dimserver / https://pypi.org/project/dimserver/
• dimclient => dimclient / https://pypi.org/project/dimclient/
• ndcli => dimclient-cli / https://pypi.org/project/dimclient-cli/

[miesi-ionos]

Thanks for your work on this. This Changeset looks good.

Can you please change https://pypi.org/project/dimclient/
git+https://github.com/1and1/[email protected]#egg=dimclient&subdirectory=dimclient
to
git+https://github.com/ionos-cloud/[email protected]#egg=dimclient&subdirectory=dimclient

and also the github links on
https://pypi.org/project/dimclient-cli/

[zeromind]

The documentation links are outdated in our documentation, once we fix them, I can update things on PyPI.

imho, fixing the docs should be a separate PR.