Update list of connected software

[banesullivan]

I noticed recently that we had two lists of "Connections" - This PR merges the list into one, hosted as its own page in the documentation, and adds a few awesome projects to the list.

If anyone thinks something is missing, please let us know (open a PR, post here, or even push to this branch)

Currently, I am splitting these into three areas: "Engineering", "Geosciences", and "Many More" (a catch-all). I would appreciate feedback on this structure. If not this, I was thinking of organizing these software based on how they use PyVista

[banesullivan]

Note: add https://jorgensd.github.io/dolfinx-tutorial/chapter3/subdomains.html#subdomains-defined-from-external-mesh-data - thanks for sharing this @tkoyama010

[akaszynski]

Note: add https://jorgensd.github.io/dolfinx-tutorial/chapter3/subdomains.html#subdomains-defined-from-external-mesh-data - thanks for sharing this @tkoyama010

pythreejs for the win!

[akaszynski]

Let's plan to have this merged for the next release so the docs are updated. @banesullivan if you're busy, I can quickly implement the changes for an end of week merge and weekend release.

[banesullivan]

I'll try to finalize this one evening this week - if I fail to deliver feel free to touch up and merge

[akaszynski]

Note: add https://jorgensd.github.io/dolfinx-tutorial/chapter3/subdomains.html#subdomains-defined-from-external-mesh-data - thanks for sharing this @tkoyama010

Added in bba70ca

[codecov]

Codecov Report

Merging #2131 (bba70ca) into main (231676d) will increase coverage by 0.45%.
The diff coverage is 95.55%.

@@            Coverage Diff             @@
##             main    #2131      +/-   ##
==========================================
+ Coverage   93.07%   93.52%   +0.45%     
==========================================
  Files          74       74              
  Lines       15548    15766     +218     
==========================================
+ Hits        14471    14745     +274     
+ Misses       1077     1021      -56     

[tkoyama010]

LGTM