Breaks Scheme for make-maps

[mjgleason]

This PR addresses issue #41. A new parameter, --breaks-scheme, has been added to the make-maps command to allow for more flexible/automatic definition of the breaks used in the maps. This should enable easier use of the functionality on other technologies (such as geothermal), as well as finer grained control on the breaks used in solar or wind maps.

Two important notes:

1. The format for the --breaks-scheme argument is either wind or solar, for the hard-coded breaks for those technologies, or <classifier-name>:<classifier-kwargs> where <classifier-name is one of the valid classifiers from the mapclassify package (see https://pysal.org/mapclassify/api.html#classifiers) and <classifier-kwargs> is an optional set of keyword arguments to pass to the classifier function, formatted as a JSON. So, a valid input would be equalinterval:{"k": 10} (this would produce 10 equal interval breaks). Alternatively the user can specify equalinterval without the kwargs for the equal interval classifier to be used with its default 5 bins.
2. The --tech parameter has been kept for legacy purposes, but is essentially just an alias for --breaks-scheme now.

[ppinchuk]

Thanks for tackling this!! make-maps was already extremely useful and this option definitely opens it up for even more use cases. Excited to play with this for the next set of geothermal supply curve runs!

[codecov-commenter]

Codecov Report

Attention: 124 lines in your changes are missing coverage. Please review.

Comparison is base (cdd9594) 39.65% compared to head (25ad0e1) 48.68%.
Report is 118 commits behind head on main.

Additional details and impacted files

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