Update in common header of Fit source files

Fit/Kernel/FitKernel.cpp

Fit/Kernel/FitKernel.h

Fit/Kernel/FitKernelImpl.cpp

Fit/Kernel/FitKernelImpl.h

Fit/Kernel/MinimizerCatalogue.cpp

Fit/Kernel/MinimizerCatalogue.h

Fit/Kernel/MinimizerFactory.cpp

Fit/Kernel/MinimizerFactory.h

Fit/Kernel/ObjectiveFunction.cpp

Fit/Kernel/ObjectiveFunction.h

Fit/Minimizer/IMinimizer.cpp

Fit/Minimizer/IMinimizer.h

Fit/Minimizer/KernelTypes.h

Fit/Minimizer/MinimizerConstants.h

Fit/Minimizer/MinimizerInfo.cpp

Fit/Minimizer/MinimizerInfo.h

Fit/Minimizer/TestMinimizer.cpp

Fit/Minimizer/TestMinimizer.h

Fit/Options/FitOptions.h

Fit/Options/MinimizerOptions.cpp