[New Feature] remove redundant colormap definitions
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Feature Description
There are several colormap definitions in qudi.util.colordefs. The four perceptually uniform sequential colormaps are now part of matplotlib as well as pyqtgraph. I could not find the ColorScaleRainbow colormap in these packages but it is also not used anywhere in qudi-core or qudi-iqo-modules.
Is suggest to remove the redundant definitions. Instead, I would more clearly state which colormap is the default one for qudi and integrate that into e.g. the QudiMatplotlibStyle.
Related Problem
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Considered Alternatives
Before removing the definitions completely, we could replace them with a link to the definitions in e.g. pyqtgraph and add a deprecation warning if they are used.
Additional Context
I stumbled upon this while trying to figure out which colormap to use while saving a data thumbnail matplotlib figure.
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