mv utilities in plot context

GUI/View/Fit/ParameterTuningDelegate.cpp

GUI/View/Instrument/DistributionForms.cpp

GUI/View/Mask/MaskEditorPropertyPanel.cpp

GUI/View/Plot2D/IntensityDataWidget.cpp

GUI/View/PlotComparison/FitComparisonWidget.cpp

GUI/View/PlotUtil/IntensityDataPropertyWidget.cpp

GUI/View/PlotUtil/IntensityDataPropertyWidget.h

GUI/View/Projection/ProjectionsEditor.cpp

GUI/View/PropertyEditor/CustomEditors.cpp

GUI/View/PropertyEditor/PropertyEditorFactory.cpp

GUI/View/PropertyEditor/ScientificSpinBox.cpp

GUI/View/PropertyEditor/ScientificSpinBox.h

Tests/Unit/GUI/TestScientificSpinBox.cpp