Fixes from static code analysers in Algorithms, Part II.

Core/Algorithms/inc/GISASExperiment.h

Core/Algorithms/inc/IFittingDataSelector.h

Core/Algorithms/inc/IIntensityFunction.h

Core/Algorithms/inc/ISquaredFunction.h

Core/Algorithms/inc/LayerDWBASimulation.h

Core/Algorithms/inc/LayerDecoratorDWBASimulation.h

Core/Algorithms/inc/OpticalFresnel.h

Core/Algorithms/src/ChiSquaredFrequency.cpp

Core/Algorithms/src/ChiSquaredModule.cpp

Core/Algorithms/src/ConvolutionDetectorResolution.cpp

Core/Algorithms/src/DWBADiffuseReflection.cpp

Core/Algorithms/src/Detector.cpp

Core/Algorithms/src/Experiment.cpp

Core/Algorithms/src/GISASExperiment.cpp

Core/Algorithms/src/IFittingDataSelector.cpp

Core/Algorithms/src/LayerDWBASimulation.cpp

Core/Algorithms/src/LayerDecoratorDWBASimulation.cpp

Core/Algorithms/src/Mask.cpp

Core/Algorithms/src/MultiLayerDWBASimulation.cpp

Core/Algorithms/src/OpticalFresnel.cpp