removed inc/ and src/ directory level from Core and Fit

Core/Algorithms/Beam.cpp

Core/Algorithms/Beam.h

Core/Algorithms/ChiSquaredModule.cpp

Core/Algorithms/ChiSquaredModule.h

Core/Algorithms/ConvolutionDetectorResolution.cpp

Core/Algorithms/ConvolutionDetectorResolution.h

Core/Algorithms/DWBADiffuseReflection.cpp

Core/Algorithms/DWBADiffuseReflection.h

Core/Algorithms/DWBASimulation.cpp

Core/Algorithms/DWBASimulation.h

Core/Algorithms/DecoratedLayerDWBASimulation.cpp

Core/Algorithms/DecoratedLayerDWBASimulation.h

Core/Algorithms/DecouplingApproximationStrategy.cpp

Core/Algorithms/DecouplingApproximationStrategy.h

Core/Algorithms/DetectorMask.cpp

Core/Algorithms/DetectorMask.h

Core/Algorithms/DistributionHandler.cpp

Core/Algorithms/DistributionHandler.h

Core/Algorithms/Distributions.cpp

Core/Algorithms/Distributions.h