Fix issue#269: infinite loop during meshing action with face interpolation

[lelandaisb]

Fix infinite loop in CoEdge::detectLoopReference methods when edges use face interpolation discretization.
Bounce around Fa0020: Ar0082 --> [Ar0076, Ar0077] --> Ar0077 --> [Ar0081, Ar0082] --> Ar0082

[codecov-commenter]

Codecov Report

❌ Patch coverage is 51.72414% with 28 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.94%. Comparing base (20a9e72) to head (47ed9be).

Files with missing lines	Patch %	Lines
src/Core/Topo/CoEdge.cpp	51.72%	28 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #230      +/-   ##
==========================================
+ Coverage   47.73%   47.94%   +0.20%     
==========================================
  Files         462      462              
  Lines       50079    50068      -11     
==========================================
+ Hits        23906    24003      +97     
+ Misses      26173    26065     -108     

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[nicolaslg]

Good job for prevented crashes; I have built additional cases of interpolated edges forming loops

EDIT : sorry, I mistook the branches while reviewing the PR. In the following test case a loop is adequately detected during meshing in the main branch but crashes with this branch

# Création d'un bloc unitaire mis dans le groupe aaa
ctx.getTopoManager().newFreeTopoInGroup ("aaa", 3)
# Changement de discrétisation pour les arêtes Ar0006
emp = Mgx3D.EdgeMeshingPropertyInterpolate(10, "Fa0000")
ctx.getTopoManager().setMeshingProperty (emp, ["Ar0006"])
# Changement de discrétisation pour les arêtes Ar0004
emp = Mgx3D.EdgeMeshingPropertyInterpolate(10, "Fa0004")
ctx.getTopoManager().setMeshingProperty (emp, ["Ar0004"])
# Changement de discrétisation pour les arêtes Ar0005
emp = Mgx3D.EdgeMeshingPropertyInterpolate(10, "Fa0001")
ctx.getTopoManager().setMeshingProperty (emp, ["Ar0005"])
# Changement de discrétisation pour les arêtes Ar0007
emp = Mgx3D.EdgeMeshingPropertyInterpolate(10, "Fa0005")
ctx.getTopoManager().setMeshingProperty (emp, ["Ar0007"])

[lelandaisb]

I rewrote the loop detection algorithm for interpolations. I made it consistent for global/local, local/face, and local/list-of-edges.
I created a unit test that includes the test provided above, the test provided in talk-spirit, and the test that reproduces the internal error.
I tested it against the internal tests: no false positives, everything is OK.