MARTE — Naming conventions and typing errors

Naming conventions and typing errors: - MARTE::MARTE_Foundations::GRM::GRService -> GrService for coherence - MARTE_Library::GRM_BasicTypes::EDFParameters -> EDF_Parameters or EdfParameters - MARTE::MARTE_AnalysisModel::SAM::SaSchedObs::suspentions -> suspensions

The convention of using uppercase for the prefixes would have been more consistent with the English style, but it has been almost consistently used along the spec the capitalization of only the first letter to reduce space, for this reason is probably better to just correct GRService in GRM as well as EDFParameters suspentios is clearly a typo to correct.