Documentation and type hints

This patch includes the deployment of the documentation pages, updated type hints, and minor bugfixes.
Big s/o to @MBSck

Smoothing optimization

Implementing a generator of test and training data to optimize lambda smoothing parameters.
Additionally, new plotting features were implemented to get a quicklook on the test, training, and baseline smoothing results.
The lambda parameter optimization employs a gradient descent method to find the optimal parameters for the smoothing.

Initial release

v0.1.0

Update setup.cfg