draft for v1.0 [PyPI release]

[krzyzinskim]

Potentially, version 1.0 of survshap could be published as a separate package on PyPI.

What needs to be done?

• adding unit tests
• adding missing and refactoring existing documentation
• adding a notebook (vignette) other than experiments with an use case
• Limiting the number of timestamps  #17

[PierrickPochelu]

Adding at least 1 unit test is mandatory if you want to encourage contributions.

Creating a PyPi file is well documented : https://packaging.python.org/en/latest/tutorials/packaging-projects/