New layouts

[thomasrobiglio]

As discussed in #359.
Added circular layout, spiral layout and barycenter_kamada_kawai_layout that does the same as barycenter_spring_layout but with a different cost function (implemented in networkx).

[codecov]

Codecov Report

Patch coverage: 98.50% and project coverage change: +0.09 🎉

Comparison is base (7b5cb1e) 90.49% compared to head (211d3af) 90.58%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #360      +/-   ##
==========================================
+ Coverage   90.49%   90.58%   +0.09%     
==========================================
  Files          41       41              
  Lines        3020     3060      +40     
==========================================
+ Hits         2733     2772      +39     
- Misses        287      288       +1     

Impacted Files	Coverage Δ
xgi/drawing/layout.py	99.19% <98.50%> (-0.81%)	⬇️

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[maximelucas]

This is great, thanks a lot Thomas.

Just let a few minor comments.
One thing missing: the new functions need to be added to the online docs (in this file https://github.com/xgi-org/xgi/blob/main/docs/source/api/drawing/xgi.drawing.layout.rst).

Could you also add the new functions to the plotting tutorial?

[thomasrobiglio]

Thank you max, i'll check all the comments in a bit. I did not put the new layouts in the tutorial because I was thinking we should open an issue to discuss how we want to re-organize the tutorial.

[maximelucas]

You're right we wanted to reorganise the tutorials. You can still add it now but otherwise we'll add it when we organise them no worries. Thank!!

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[thomasrobiglio]

@maximelucas I've just pushed the files with your comments (thx) + a simple cell in the drawing tutorial (tutorial 05). Let me know if I need to add other test to solve the ☂️ , else I'll let you merge the PR.

[maximelucas]

Thanks Thomas!
@leotrs you said you wanted to check this PR? If not, I'll merge after Thomas fixes my last comment.