[AGIPD][Correct] Some plots improvements for AGIPD offline correction

Description

• Remove jet colormap and leave the viridis default color map to be used.
• overuse np.percentile to pick the right scale instead of the hard-coded numbers which shouldn't fit every corrected data.
• Removed 3d plots after a discussion with Jola. It's duplication info already plotted in 2d and it is not very useful

How Has This Been Tested?

• Unit tests
• Validated results with Jola
• Investigated plots multiple times for multiple runs.

Relevant Documents (optional)

These are some reports before and after the changes:

hed_run456_prod.pdf hed_run456_branch.pdf

mid_r56_prod.pdf mid_r56_branch.pdf

mid_run68_prod.pdf mid_r68_branch.pdf

spb_correct_master.pdf spb_correct_branch.pdf

hed_corr_master.pdf hed__corr_branch.pdf

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

Reviewers

@schmidtp @kluyvert