Group factorization parameter classes into matfaust.factparams namespace.

misc/test/src/Matlab/FaustFactoryTest.m

...tfaust/+factparams/@ConstraintGeneric/ConstraintGeneric.m

...tlab/+matfaust/+factparams/@ConstraintInt/ConstraintInt.m

...tlab/+matfaust/+factparams/@ConstraintMat/ConstraintMat.m

...ab/+matfaust/+factparams/@ConstraintName/ConstraintName.m

...ab/+matfaust/+factparams/@ConstraintReal/ConstraintReal.m

...per/matlab/+matfaust/+factparams/@ParamsFact/ParamsFact.m

...ctparams/@ParamsHierarchicalFact/ParamsHierarchicalFact.m

...ab/+matfaust/+factparams/@ParamsPalm4MSA/ParamsPalm4MSA.m

...tfaust/+factparams/@StoppingCriterion/StoppingCriterion.m

wrapper/matlab/+matfaust/@FaustFactory/FaustFactory.m