[AnimationLoop] Deprecated ConstraintAnimationLoop

[alxbilger]

Should be deprecated according to

sofa/Sofa/Component/AnimationLoop/src/sofa/component/animationloop/ConstraintAnimationLoop.cpp

Line 247 in b0886d2

msg_deprecated("ConstraintAnimationLoop") << "WARNING : ConstraintAnimationLoop is deprecated. Please use the combination of FreeMotionAnimationLoop and GenericConstraintSolver." ;

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