Add support for cmcrameri scientific color maps

[saundersresearch]

In the interest of colorblind-friendly visualizations, we should support calling cmcrameri's scientific visualization colormaps. If we install and import the package (https://github.com/callumrollo/cmcrameri), the colormaps can be called with "cmc.batlow" as the colormap

See this for an overview: https://www.fabiocrameri.ch/colourmaps/