mv Device/Intensity -> Core/Residual

Core/Fitting/FitObjective.cpp

Core/Residual/ChiSquaredModule.cpp

Core/Residual/ChiSquaredModule.h

Core/Residual/IChiSquaredModule.cpp

Core/Residual/IChiSquaredModule.h

Core/Residual/IIntensityFunction.cpp

Core/Residual/IIntensityFunction.h

Core/Residual/VarianceFunctions.cpp

Core/Residual/VarianceFunctions.h

Tests/UnitTests/Core/Other/ChiSquaredModuleTest.cpp

Wrap/Swig/libBornAgainDevice.i