Improve trending plots, particularly wfe_histogram arrows display

[mperrin]

Improves the trending.wfe_histogram_plot arrow markers to show corrections.

• switches to use matplotlib.annotate to draw the arrows, instead of separate calls to plot lines and draw triangle markers. This ultimately is cleaner but ended up taking a while to figure out since there's a ridiculously complicated set of options to the arrow-drawing functions.
• Adds min_wfe and max_wfe options to that function, which can be used to directly set custom min and max ranges if the defaults aren't suitable in some particular case. The histogram and cumulative histogram display is updates to clip values, such that values outside of min and max are still included in the histogram at the extreme bottom or top bin of the histogram, respectively.

Example output:

Separately, this PR also has a minor fix to some unrelated display issues elsewhere in trending.py, by setting clip_on=True in a couple function calls, to prevent labels being drawn outside of axes sometimes depending on x and y ranges there. This is mostly unrelated but is convenient to combine into this same PR.

[pep8speaks]

Hello @mperrin, Thank you for updating !

• In the file webbpsf/trending.py:

Line 386:70: E226 missing whitespace around arithmetic operator Line 390:17: E124 closing bracket does not match visual indentation

Comment last updated at 2024-06-11 19:05:15 UTC

[kulpster85]

Looks great! Did some testing with the various options and it works well with changing the min,max values as well as the correction markers.