👷 Implement snekmate-Namespaced Distribution Package Building

[pcaversaccio]

🕓 Changelog

This PR refactors how the binary wheel and source tarball are built. Before this change, the wheel folder structure looked like this:

snekmate-0.0.X-py3-none-any.whl
├── auth
├── extensions
├── governance
├── tokens
└── utils

After this PR, it will look like this:

snekmate-0.0.X-py3-none-any.whl
└── snekmate
    ├── auth
    ├── extensions
    ├── governance
    ├── tokens
    └── utils

You can test the build via:

pip install -i https://test.pypi.org/simple/ snekmate==0.0.5rc2 -t .

A CI test run that publishes to TestPyPI is available here.

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