Allow editable installs

[ramnes]

I hate to be that guy, but would you consider adding a dumb setup.py so that the library can be installed in editable mode with pip? :)

It baffles me that editable installs are still a hot topic in the packaging game. Here the simplest diff that can allow these I think, and it still saves time when testing changes against a real world codebase.

[codecov]

Codecov Report

Merging #370 (c7d8975) into main (078b417) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #370   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           47        47           
  Lines         1483      1483           
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  Hits          1483      1483           

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[dbanty]

Pip can't use PEP517 for editable installs? Lame. I'm happy to make development easier if it doesn't mean extra maintenance burden (your PR looks fine). Before I do though, would you mind letting me in on the workflow that requires this? I do all my local development in my Poetry venv which I think is why I've never required this.

[ramnes]

I don't use poetry (nor PEP517) for sftpgo-client, and it uses openapi-python-client to generate most of the codebase (but not all). I have both codebases as directories, each with their own virtual environment.

If I want to hack on openapi-python-client and see the diff it generates for sftpgo-client, at the moment I have to either reinstall openapi-python-client in stpgo-client's virtual environment at every change, or do the changes in sftpgo-client's virtual environment directly, but openapi-python-client isn't a git repository here, so I have to backport the changes later so that I can commit them.

With this PR, I can simply run pip install -e ../openapi-python-client inside sftpgo-client virtual environment and avoid all this fuss.