Add polyhedron

[MatthewFlamm]

closes #52

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.07 🎉

Comparison is base (fe5c4de) 99.23% compared to head (eb2e278) 99.30%.

❗ Current head eb2e278 differs from pull request most recent head 97de8b5. Consider uploading reports for the commit 97de8b5 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #62      +/-   ##
==========================================
+ Coverage   99.23%   99.30%   +0.07%     
==========================================
  Files           4        4              
  Lines         261      288      +27     
==========================================
+ Hits          259      286      +27     
  Misses          2        2              

Impacted Files	Coverage Δ
src/pyransame/util.py	100.00% <100.00%> (ø)
src/pyransame/volume.py	97.77% <100.00%> (+0.10%)	⬆️

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