[Type] Refactor Vec

[fredroy]

• based on [All] ColorMap uses RGBAColor #4270

Part of the task #4217

This PR removes the inheritance on type::fixed_array and use std::array to store the elements.

No performance change noticed on few scenes (caduceus, TorusFall, beamadapter scene) on Windows/msvc, linux/gcc and macos/clang.

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Benches: (Ubuntu, gcc)
Unit:
https://ethercalc.net/jt9xe3yadxug

Mostly the same, except:

• zero-construct is faster
• mat<24> mult is slower but can be fixed easily (https://github.com/sofa-framework/sofa/blob/3fadc10492662a63eab725fa45894f2c5b3fe9bd/Sofa/framework/Type/src/sofa/type/Mat.h#L531C12-L531C12 may confuse the vectorizer).
  EDIT: and apparently is mitigated by using LTO

Scenes :
caduceus:

• master: 10000 iterations done in 6.61867 s ( 1510.88 FPS)
• pr: 10000 iterations done in 6.59469 s ( 1516.37 FPS)

TorusFall:

• master: 5000 iterations done in 15.6086 s ( 320.336 FPS)
• pr: 5000 iterations done in 15.6149 s ( 320.207 FPS)

3instruments_collis

• master: 5000 iterations done in 30.5179 s ( 163.838 FPS)
• pr: 5000 iterations done in 30.2582 s ( 165.244 FPS)

With LTO:
caduceus:

• master: 10000 iterations done in 6.55136 s ( 1526.4 FPS)
• pr: 10000 iterations done in 6.49977 s ( 1538.52 FPS)

TorusFall:

• master: 5000 iterations done in 15.4835 s ( 322.925 FPS)
• pr: 5000 iterations done in 14.8696 s ( 336.256 FPS)

3instruments_collis

• master: 5000 iterations done in 30.0172 s ( 166.571 FPS)
• pr: 5000 iterations done in 29.9373 s ( 167.016 FPS)

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By submitting this pull request, I acknowledge that
I have read, understand, and agree SOFA Developer Certificate of Origin (DCO).

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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][force-full-build]