Changes

[Lagrangian.Correction] Add callbacks to check zero compliance  (#4205)

* Create one single callback checking non-zero values for compliance

* add info message in rigid case

* test compliance vector only if non-rigid using boiler plate snippet

* move in a dedicated file the boiler plate code

* fix compil

* add checks for zero compliance vector in case of rigid body

* minor formatting

* Add comment on rigid compliance vector

* Update Sofa/Component/Constraint/Lagrangian/Correction/src/sofa/component/constraint/lagrangian/correction/UncoupledConstraintCorrection.inl

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Co-authored-by: Paul Baksic <30337881+bakpaul@users.noreply.github.com>

[All] Fix subplugin regression tests (#4420)

* Add relative path to references files into regression-tests files

* fix typo

[Type] Refactor Mat (#4396)

remove inheritance and use std::array

Co-authored-by: Paul Baksic <30337881+bakpaul@users.noreply.github.com>

[sofaInfo] Fix compilation and behavior (#4422)

Co-authored-by: Paul Baksic <30337881+bakpaul@users.noreply.github.com>