rename GUI/View/PlotUtil/ -> GUI/View/Plotter

GUI/View/Frame/Fit1DFrame.cpp

GUI/View/Frame/Fit2DFrame.cpp

GUI/View/Mask/MaskEditorCanvas.cpp

GUI/View/Mask/MaskGraphicsScene.cpp

GUI/View/Plot2D/ColorMapCanvas.cpp

GUI/View/Plot2D/IntensityDataCanvas.cpp

GUI/View/PlotProgress/FitFlowWidget.cpp

GUI/View/PlotScale/FontScalingEvent.cpp

GUI/View/PlotScale/SavePlotAssistant.cpp

GUI/View/PlotSpecular/SpecularPlotCanvas.cpp

GUI/View/Plotter/ColorMap.cpp

GUI/View/Plotter/ColorMap.h

GUI/View/Plotter/HistogramPlot.cpp

GUI/View/Plotter/HistogramPlot.h

GUI/View/Plotter/PlotEventHelper.cpp

GUI/View/Plotter/PlotEventHelper.h

GUI/View/Plotter/PlotStatusLabel.cpp

GUI/View/Plotter/PlotStatusLabel.h

GUI/View/Plotter/ProjectionsPlot.cpp

GUI/View/Plotter/ProjectionsPlot.h