Add a viewer for COSMO surfaces

[y-kusaka]

I suppose I did rebase.

Add a viewer for COSMO surfaces

vis_poly/cosmo_poly.py

• read .cosmo or gout file to import cosmo data.
• output polygonized cosmo surfaces for visualization.
• used to_sigma.py for parsing.
• used open3d package for surface reconstruction (mesh generation)
• used pyvista package for visualization.

profiles/to_sigma.py

• clean: unnecessary 'print' at L158 removed.

[y-kusaka]

I did too many commits. sorry. I should squash them before push. If it's too dirty, I'll find a way to clean up tomorrow.

[ianhbell]

It's ok, I can squash-merge at the end, which is usually how I handle pull requests. That avoids accidents persisting in the main codebase.

[ianhbell]

Are we all set here?

[y-kusaka]

Are we all set here?

I guess so.

[ianhbell]

Ok good, I'll squash+merge tomorrow.

[ianhbell]

Very nice work!