[Mass] Fix point topological changes for UniformMass

[hugtalbot]

Based on #2870

The topological callback was actually not working for the UniformMass.
Now POINTSADDED and POINTSREMOVED are handled

in addition:

• add override to avoid massive warnings
• add box in scene to allow seeing the mesh

Thanks to @Oparras for rising this in #2668
A regression could be added on this scene

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Reviewers will merge this pull-request only if

• it builds with SUCCESS for all platforms on the CI.
• it does not generate new warnings.
• it does not generate new unit test failures.
• it does not generate new scene test failures.
• it does not break API compatibility.
• it is more than 1 week old (or has fast-merge label).

[epernod]

Thank you for this PR, it highlights a more serious bug when adding elements in TopologySubsetData. A PR to fix the TopologySubsetData is coming, then we will update this PR to adapt UniformMass with the good callbacks.

Right now the callback on PointRemoved event proposed in this PR will crash as the TopologySubsetData already has an internal mechanism to update its size. So you perform the deletion twice.

[epernod]

Update the FIX but now this PR depends on change done in PR #2870

[hugtalbot]

any update on the #2870 @epernod ?

[epernod]

any update on the #2870 @epernod ?

@hugtalbot now that #2869 has been merged, you can review the #2870, then this one will be the following...

[epernod]

[ci-build][with-all-tests]

[epernod]

@hugtalbot this one is ready for me. Could you double check and merge?