What's the strategy for documenting core functions? (and adding to https://pystare.readthedocs.io/)

[michaelleerilee]

[NiklasPhabian]

functions of the core.py module? A bit tricky since the module is generated by SWIG. Bit the good folks over there have a way:
https://www.swig.org/Doc1.3/Python.html#Python_nn65

I will set it up and then the two of us should write the docstrings together.