[Sofa.Type] Fix compile-time Mat and Vec

[fredroy]

• std::abs is constexpr only in c++23
  -> as stated in the standard... But gcc flagged it constexpr 🤫

• std::sqrt is not constexpr at all. Implementations exists though. For now, all functions relying on sqrt is not constexpr (norm methods)

Allows to compile alxbilger/SofaBenchmark#27 (for mac and msvc then)

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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).

[fredroy]

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

[fredroy]

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

[alxbilger]

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

[damienmarchal]

Merge if CI pass.