Feature release
Add user documentation with ReadTheDocs (140)
Please find at https://spherinator.readthedocs.io/en/latest/index.html
Use Poetry for packaging (139)
The Python code was restructured and placed in the `src` directory, with major namespaces for `spherinator` and `hipster` included. Poetry can be used to build Python packages and upload them to PyPI. The package installation will include the executables `spherinator` and `hipster` making them available in the system path.
Other Changes
* Remove the first version of the hyperspherical distribution (127)
* ONNX export monitoring (108)
* Encoder and decoder as model parameters (98)
* Define a list of IDs for reconstruction callback (78)
* Replace git submodules with poetry git dependencies (63)
**Full Changelog**: https://github.com/HITS-AIN/Spherinator/compare/v0.2...v0.3