Restore all Q_OBJECT removed in MR 1447

GUI/Model/Data/DataItem.h

GUI/Model/Data/SpecularDataItem.h

GUI/Model/Device/InstrumentNotifier.h

GUI/Model/Device/PointwiseAxisItem.h

GUI/Model/Model/ParameterTuningModel.h

GUI/View/Common/DataAccessWidget.h

GUI/View/Common/IntensityDataPropertyWidget.h

GUI/View/Fit/FitSessionManager.h

GUI/View/Fit/FitSessionWidget.h

GUI/View/Fit/JobMessagePanel.h

GUI/View/Import/RealDataMaskWidget.h

GUI/View/Import/RealDataPresenter.h

GUI/View/Info/ComboSelectorDialog.h

GUI/View/Info/DetailedMessageBox.h

GUI/View/Info/OverlayLabelController.h

GUI/View/Info/OverlayLabelWidget.h

GUI/View/Info/PythonSyntaxHighlighter.h

GUI/View/Instrument/InstrumentLibraryEditor.h

GUI/View/Instrument/InstrumentListModel.h

GUI/View/Instrument/InstrumentView.h