Merge branch 'd15' into 'develop'

Core/Export/SimulationToPython.cpp

Core/Fitting/ObjectiveMetric.cpp

Core/Fitting/SimDataPair.cpp

Core/Scan/CoordSystem1D.cpp

Core/Scan/CoordSystem1D.h

Core/Simulation/DepthProbeSimulation.cpp

Core/Simulation/DepthProbeSimulation.h

Core/Simulation/GISASSimulation.cpp

Core/Simulation/ISimulation2D.cpp

Core/Simulation/ISimulation2D.h

Core/Simulation/OffSpecularSimulation.cpp

Core/Simulation/OffSpecularSimulation.h

Core/Simulation/SpecularSimulation.cpp

Device/Detector/IDetector.h

Device/Detector/RectangularDetector.h

Device/Detector/SpecularDetector1D.h

Device/Detector/SphericalDetector.h

Device/Histo/SimulationResult.cpp

Device/Histo/SimulationResult.h

Device/Instrument/CoordSystem2D.cpp