ProjectDocument: add job and real models as separate variables

GUI/Model/Project/ProjectDocument.cpp

@@ -129,12 +129,12 @@ SampleModel* ProjectDocument::sampleModel() const
 
 RealModel* ProjectDocument::realModel() const
 {
-    return m_applicationModels.realModel();
+    return const_cast<RealModel*>(&m_realDataModel);
 }
 
 JobModel* ProjectDocument::jobModel() const
 {
-    return m_applicationModels.jobModel();
+    return const_cast<JobModel*>(&m_jobModel);
 }
 
 SimulationOptionsItem* ProjectDocument::simulationOptionsItem()

GUI/Model/Project/ProjectDocument.h

@@ -136,9 +136,11 @@ private:
     bool m_singleSampleMode;
     Functionalities m_functionalities;
     SimulationOptionsItem m_simulationOptionsItem;
-    SampleModel m_sampleModel;
     InstrumentsEditController m_instrumentEditController;
     InstrumentModel m_instrumentModel;
+    SampleModel m_sampleModel;
+    RealModel m_realDataModel;
+    JobModel m_jobModel;
     int m_lastViewActive;
 };