refac: Constraint Messages are prepared and should be given back on phase Shift control

...n/src/main/java/unipotsdam/gf/core/states/PhasesImpl.java

...ain/java/unipotsdam/gf/core/states/model/Constraints.java

.../unipotsdam/gf/core/states/model/ConstraintsMessages.java

...chen/src/main/java/unipotsdam/gf/interfaces/Feedback.java

...rc/main/java/unipotsdam/gf/interfaces/ICommunication.java

...chen/src/main/java/unipotsdam/gf/interfaces/IJournal.java

...c/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java

.../modules/assessment/controller/service/FBAssessement.java

...modules/assessment/controller/service/PeerAssessment.java

...es/assessment/controller/service/PeerAssessmentDummy.java

...ules/communication/service/CommunicationDummyService.java

...a/unipotsdam/gf/modules/journal/service/IJournalImpl.java

...unipotsdam/gf/modules/journal/service/JournalService.java

...otsdam/gf/modules/journal/service/JournalServiceImpl.java

...am/gf/modules/journal/service/ProjectDescriptionImpl.java

...gf/modules/journal/service/ProjectDescriptionService.java

...nipotsdam/gf/modules/peer2peerfeedback/DummyFeedback.java

.../test/java/unipotsdam/gf/interfaces/ActivityFlowTest.java

...am/gf/modules/journal/service/JournalServiceImplTest.java

...f/modules/journal/service/ProjectDescriptionImplTest.java