Quick test on current regression on the CI

[epernod]

Just checking that the regression fails if the state reference file (based on the mechanicalObject name) is not found

[with-all-tests]

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[epernod]

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

[epernod]

I'm afraid to say that my fear were right. There is a mismatch of reference filename against current mechanicalObject names. And the ReadState is not returning false if the ref is not found.

You can see that I change the name of a mechanicalObject and totally mess up the mass of several torus in the chain.scn but the regression is still passing:

[INFO] [BaseRegression_test::runStateRegressionTest] Testing /workspace/sofa/examples/Demos/chainAll.scn
[ OK ] Regression_test/StateRegression_test.sceneTest/chainAll_scn (7416 ms)
[ RUN ] Regression_test/StateRegression_test.sceneTest/chainHybrid_scn