Return axes

[nwlandry]

Updated the plotting functions:

• Renamed xgi_pylab.py to draw.py.
• Removed draw_xgi_nodes became draw_nodes, draw_xgi_hyperedges became draw_hyperedges, and draw_xgi_simplices became draw_simplices.
• Added tests for the drawing helper functions.
• Added a pca_transform function which can be used to control the rotation of the drawing relative to the principal axes.

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[codecov]

Codecov Report

Patch coverage: 75.00% and project coverage change: +0.87 🎉

Comparison is base (6a5fb60) 83.41% compared to head (70e89e1) 84.29%.

❗ Current head 70e89e1 differs from pull request most recent head d2bd3a7. Consider uploading reports for the commit d2bd3a7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #300      +/-   ##
==========================================
+ Coverage   83.41%   84.29%   +0.87%     
==========================================
  Files          35       35              
  Lines        2732     2751      +19     
==========================================
+ Hits         2279     2319      +40     
+ Misses        453      432      -21     

Impacted Files	Coverage Δ
xgi/algorithms/centrality.py	63.04% <ø> (ø)
xgi/drawing/draw.py	24.01% <46.15%> (ø)
xgi/convert.py	91.26% <100.00%> (ø)
xgi/drawing/__init__.py	100.00% <100.00%> (ø)
xgi/drawing/layout.py	100.00% <100.00%> (ø)

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[maximelucas]

Look great, thanks. The renaming is a good idea.

Do you think the codecov/patch is failing because your new PCA function is not tested?

Could you add an example of how to use the PCA function in the notebook?

[nwlandry]

All your comments should be addressed now! Added unit tests and an example in Tutorial 5.

[maximelucas]

Left one more minor comment. Also the notebook for tutorial 5 has all outputs cleared.
Could you rerun it to show the outputs?

And the codecov test is still failing. I think because our codecov has slightly decrease with the PR?
Maybe we can merge and do another PR where we add tests for the draw functions as we planned anyway.

[nwlandry]

I looked up how to fix the issue and hopefully the configuration file that I added will fix the error. The issue is that even though this PR increases the coverage, it edits code that doesn't have any coverage so it treats it like I just committed a bunch of code without tests.

[maximelucas]

Yea that's what I understood too.
Looks great, thanks :)