Make an object-oriented grating model Python package?

[gully]

We have a bunch of useful modeling code spread across over 10 notebooks. The notebooks duplicate lots of code from one to the next and they are getting unwieldy. We want to distill the most useful parts of the package into reusable functions.

We also want a solution where the math notation can be contained alongside the functions, a nice virtue of the notebooks.

I therefore recommend making an object-oriented package with a standalone sphinx website that can auto-render the equations written in docstrings.

I'll plan to set up a proof-of-concept.

[gully]

The first commit of this path is here: 5aecdb0