[jwu5] SimResult, Datafield: further clarifications ()

Device/Coord/CoordSystem1D.cpp

Device/Coord/CoordSystem1D.h

Device/Coord/CoordSystem2D.cpp

Device/Coord/CoordSystem2D.h

Device/Coord/ICoordSystem.cpp

Device/Coord/ICoordSystem.h

Device/Histo/SimulationResult.cpp

Device/Histo/SimulationResult.h

Examples/fit/scatter2d/fit_along_slices.py

Examples/scatter2d/FindPeaks.py

Examples/scatter2d/GratingMC.py

Examples/varia/AccessingSimulationResults.py

GUI/Model/Data/DataItem.cpp

GUI/Model/Data/DataItem.h

GUI/Model/Data/DataItemUtil.cpp

GUI/Model/Data/IntensityDataItem.cpp

GUI/Model/Data/MaskUnitsConverter.cpp

GUI/Model/Data/SpecularDataItem.cpp

GUI/Model/Device/InstrumentItems.cpp

GUI/Model/Device/RealItem.cpp