Merge branch 'interferenceForms' into 'develop'

GUI/Model/Sample/FTDecayFunctionItems.cpp

GUI/Model/Sample/FTDecayFunctionItems.h

GUI/Model/Sample/FTDistributionItems.cpp

GUI/Model/Sample/FTDistributionItems.h

GUI/Model/Sample/InterferenceItems.cpp

GUI/Model/Sample/InterferenceItems.h

GUI/Model/Sample/Lattice2DItems.cpp

GUI/Model/Sample/Lattice2DItems.h

GUI/Model/Sample/ParticleLayoutItem.cpp

GUI/Model/Sample/ParticleLayoutItem.h

GUI/View/Edit/DoubleSpinBox.cpp

GUI/View/Edit/DoubleSpinBox.h

GUI/View/SampleDesigner/FormLayouter.cpp

GUI/View/SampleDesigner/FormLayouter.h

GUI/View/SampleDesigner/InterferenceForm.cpp

GUI/View/SampleDesigner/LatticeTypeSelectionForm.cpp

GUI/View/SampleDesigner/LatticeTypeSelectionForm.h

GUI/View/SampleDesigner/LayerEditorUtils.cpp

GUI/View/SampleDesigner/LayerEditorUtils.h

GUI/View/SampleDesigner/ParticleLayoutForm.cpp