Two remarks on the angle smoothing

[stla]

Hello,

I tried the angle and area smoothing today, with .area_smoothing(false).

I firstly tried with an EPECK mesh, and I had to kill the session so much it was slow. Maybe this should be mentionned in the doc: don't smooth an EPECK mesh.

My other remark is that the possibility to run the PMP::angle_and_area_smoothing without a FaceRange argument is not documented (but this is the example given).

[afabri]

Thank you for your feedback. The second remark is addressed in PR #7489.

Concerning the first remark it would be a huge effort to do that systematically.