2D & 3D Heatmaps

[Rishab87]

Description

Added plot_3d_cross_section & plot_3d_heatmap functions to support plotting for 3D thermal simulations.

Fixes # (issue)

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #)

Important checks:

Please confirm the following before marking the PR as ready for review:

• No style issues: nox -s pre-commit
• All tests pass: nox -s tests
• The documentation builds: nox -s doctests
• Code is commented for hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[Rishab87]

@rtimms can you please review it?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.09%. Comparing base (d421e3a) to head (5b84828).
⚠️ Report is 163 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop    #5130    +/-   ##
=========================================
  Coverage    99.08%   99.09%            
=========================================
  Files          310      312     +2     
  Lines        24459    24660   +201     
=========================================
+ Hits         24236    24437   +201     
  Misses         223      223            

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[Rishab87]

@rtimms I've changed the file name. Can you please re-review?