Refactor some of the plotting code

[samaloney]

Refactor to move plotting code out of products to simplify and try to keep single reponssiblty principle a bit more closes #180.

• Created new PixelPlotter class
• Refactored current mixin to use this new class
  • can prob remove the mixin to simplify even further
• Allows the PixelPlots to be animated which was part of the motivation

test2.mp4

[codecov]

Codecov Report

❌ Patch coverage is 77.40864% with 68 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.36%. Comparing base (ea35d6f) to head (8241045).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
stixpy/visualisation/plotters.py	77.05%	67 Missing ⚠️
stixpy/product/sources/science.py	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #181      +/-   ##
==========================================
+ Coverage   80.97%   81.36%   +0.39%     
==========================================
  Files          35       36       +1     
  Lines        2391     2458      +67     
==========================================
+ Hits         1936     2000      +64     
- Misses        455      458       +3     

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[Copilot]

Pull Request Overview

This PR refactors the plotting code by extracting pixel plotting functionality from the PixelPlotMixin class into a new dedicated PixelPlotter class to improve code organization and follow the single responsibility principle.

• Creates a new PixelPlotter class that handles all pixel plotting logic
• Simplifies the PixelPlotMixin by delegating to the new plotter class
• Enables animation capabilities for pixel plots through the cleaner separation

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
stixpy/visualisation/plotters.py	New file containing the extracted PixelPlotter class and SliderCustomValue helper
stixpy/product/sources/science.py	Refactored to use the new PixelPlotter class and removed extensive plotting code

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[nicHoch]

good rework - better structure now for more plotting to come