PMP: Corefinement polish documentation

[afabri]

Summary of Changes

Taken the importance of autorefinement the documentation should be improved.

Todo

• typos
• Add example in the User Manual.
• Add an illustration
• @LeoValque told me that the comment of the function is not correct. He mentioned a partial overlap of two triangle edges.

Release Management

• Affected package(s): PMP_Boolean
• Link to compiled documentation (obligatory for small feature) wrong link name to be changed
• License and copyright ownership: unchanged

[afabri]

@sloriot @LeoValque it would be great if you added something like this as image and example:

[sloriot]

Successfully tested in CGAL-6.2-Ic-190

[afabri]

I do not understand the sentence " If several triangles are coplanar, the output will contain as many copies of the triangulation of those refined triangles." in the User Manual

[sloriot]

I do not understand the sentence " If several triangles are coplanar, the output will contain as many copies of the triangulation of those refined triangles." in the User Manual

You are computing the intersection of the input triangles and retriangulate those triangles. If you have 3 overlapping triangles (coplanar then), you will get 3 times the triangles in the overlapping zone.

[sloriot]

Included in #9363