Serializer: rename fct

GUI/Model/Device/BeamAngleItems.cpp

GUI/Model/Device/BeamWavelengthItem.cpp

GUI/Model/Device/MaskItems.cpp

GUI/Model/Device/PointwiseAxisItem.cpp

GUI/Model/Device/RectangularDetectorItem.cpp

GUI/Model/Device/SpecularBeamInclinationItem.cpp

GUI/Model/Device/SphericalDetectorItem.cpp

GUI/Model/Sample/MaterialItem.cpp

GUI/Model/Sample/MaterialItems.cpp

GUI/Model/Sample/MultiLayerItem.cpp

GUI/Model/XML/Serializer.cpp

GUI/Model/XML/Serializer.h