Fix and test MaterialID in msh2vtu

This introduces more tests to systematically check, if MaterialIDs are properly generated from gmsh physical group tags. Also Fixes a failing case, where a single physical group with a tag != 0 would not reindex to 0 if reindex=True. Also changes the logic from reindex: previously would use a offset to reach 0, i.e. [1,2,4] -> [0,1,3] now it reindexes completely, i.e. [1,2,4] -> [0,1,2]

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assigned to @FZill

added 51 commits

• 8849bf0c...96d30fad - 50 commits from branch ogs/tools:main
• 8cec6b5e - Fix condition

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@felikskiszkurno Yes, non-covered code https://ogs.ogs.xyz/-/tools/ogstools/-/jobs/492592/artifacts/htmlcov/z_da877fdd31067d0c___init___py.html, is likely to contain defects.

But, the one test failing, is indeed a test that uses msh2vtu? Could you have look?

FAILED tests/test_meshlib.py::TestUtils::test_xdmf_quadratic - RuntimeError: OGS execution was not successful.

assigned to @felikskiszkurno

requested review from @TobiasMeisel

changed milestone to %0.5.0 Release

We should write down some specification what materialIDs we expect under which circumstances, so that we are all in the same boat and don't have expectations which might differ.

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added 4 commits

• 8cec6b5e...38b831bd - 3 commits from branch ogs/tools:main
• 54c210a4 - Fix condition

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added 1 commit

• 49b86e59 - [msh2vtu] fix and test generation of MaterialIDs

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marked this merge request as ready

changed title from Draft: Fix buggy MaterialID in msh2vtu? to Fix and test MaterialID in msh2vtu

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resolved all threads

added 1 commit

• 0fd658b0 - fix precommit

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added 1 commit

• b83cf6dc - fix precommit

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