[Getfem-commits] Could you merge 4 branchs

[Tetsuo Koyama]

Dear getfem proejct

Could you review and merge 4 branchs?
1 is API adding and 3 is very small fix.

1. devel-tetsuo-outer_faces_in_ball
I added outer_faces_in_ball to python API and select_faces_in_ball to C++ API.
It makes easy to select region in ball shape.
I know we can select convex and faces by using numpy, but this API
save that work.
(I really like GetFEM++'s mesh API.)

2. devel-tetsuo-cleanup
Variable 'is_set' is assigned a value that is never used.  I deleted
it in interface/src/getfemint_levelset.cc .

3. tetsuo-comment-of-pts-from-cvid
I made a small fix of message in gmm to show me what is the wrong of use.

4. tetsuo-comment-of-pts-from-cvid
My friend @phduckie said that in GetFEEM++ Python API document it is
not clear that what is returned from function. So I changed the
comment of function a little which is used for documentation.
Thank @phduckie for your comment.
https://twitter.com/phduckie/status/1217557364204699649

Best Regard Tetsuo