Merge remote-tracking branch 'upstream/develop' into ColorPropertyRemoval

Core/Basics/BornAgainNamespace.h

Core/Computation/PoissonNoiseBackground.cpp

Core/Computation/PoissonNoiseBackground.h

Core/Export/ExportToPython.cpp

Core/Parametrization/INodeVisitor.h

Core/Tools/MathFunctions.cpp

Core/Tools/MathFunctions.h

GUI/coregui/Models/BackgroundItems.cpp

GUI/coregui/Models/BackgroundItems.h

GUI/coregui/Models/DomainSimulationBuilder.cpp

GUI/coregui/Models/GUIObjectBuilder.h

GUI/coregui/Models/GroupInfo.cpp

GUI/coregui/Models/GroupInfoCatalogue.cpp

GUI/coregui/Models/InstrumentItem.cpp

GUI/coregui/Models/InstrumentItem.h

GUI/coregui/Models/ItemFactory.cpp

GUI/coregui/Models/TransformFromDomain.cpp

GUI/coregui/Models/item_constants.h

GUI/coregui/Views/InstrumentWidgets/DetectorEditorWidget.cpp

...ui/Views/InstrumentWidgets/InstrumentComponentsWidget.cpp