Add multi-gauss and center of mass statistics

icons/multigaussian.png

src/Global.h

src/Makefile.in

src/manager/AnalysisRequesterManager.cpp

src/manager/AnalysisRequesterManager.h

src/manager/InterfaceManager.cpp

src/manager/InterfaceManager.h

src/plot/property/PropertyEmptyPlot.cpp

src/plot/property/PropertyEmptyPlot.h

src/plot/property/PropertyPlot.cpp

src/plot/property/PropertyPlot.h

src/plot/property/PropertyPlot1D.cpp

src/plot/property/PropertyPlot1D.h

src/plot/property/PropertyPlot2D.cpp

src/plot/property/PropertyPlot2D.h

src/view/mpl/MplStatistics.cpp

src/view/mpl/MplStatistics.h

src/view/qt/QtStatisticWidget.cpp

src/view/qt/QtStatisticWidget.h

src/view/qt/QtToolBar.cpp