[m.0] Upd using ProjectDocument::setModified and clearModified (Closes #1079)

GUI/Model/Project/ProjectDocument.h

GUI/View/Device/AxisScanEditor.cpp

GUI/View/Device/PolarizationAnalysisEditor.cpp

GUI/View/Device/ScanEditor.cpp

GUI/View/Device/ScanRangeForm.cpp

GUI/View/Job/JobsPanel.cpp

GUI/View/Main/ActionManager.cpp

GUI/View/Main/MainWindow.cpp

GUI/View/Main/ProjectManager.cpp

GUI/View/Numeric/ComboUtil.h

GUI/View/Realspace/RealspaceWidget.cpp

GUI/View/Sample/LayerContainerForm.cpp

GUI/View/Sample/SampleForm.cpp

GUI/View/Tuning/ParameterBackupWidget.cpp

GUI/View/Tuning/PartunerQModel.cpp

GUI/View/View/InstrumentView.cpp

Tests/Unit/GUI/TestProjectDocument.cpp