[SofaMeshCollision] Fix TriangleModel to handle topology changes

[epernod]

Fix crash when removing triangles in scene using TriangleModel component.

Clean and comment the class while undusting it (sorry hard to read the diff)

• remove serr/sout
• change all protected members prefix
• rewritte init and updateFromTopology methods
• Remove the handleTopologyChange method. As this class use directly the topology buffers, no need neither for TopologyData. Just check the topology revision and update the component if topology has changed.
• Update RemovingTrianglesProcess and AddingTrianglesProcess tests scenes to test the TriangleModel

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This PR:

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

Reviewers will merge only if all these checks are true.

[epernod]

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