Script KeyError with colormaps - not registered without importing analysator plot.py

[alhom]

plot "submodule" is now lazily imported when importing analysator. This means that it will not register new colormaps, and if a user has a script that does

import analysator as pt
import maplotlib.pyplot as plt

# do something

plt.pcolor(somedata, cmap="glasgow")
# glasgow being an example of a SCM8 colormap 
# registered by analysator.plot and not in Matplotlib (3.10, at least)

... matplotlib will not find "glasgow" colormap anymore.

Solution:

import analysator as pt
import maplotlib.pyplot as plt
import plot # this imports analysator plotting module and registers the colormaps 

Solution is subject to change after #354.

This issue is information-only, since the whole shebang of poking at other modules when importing yours is kind of iffy.