Exposing missing fitting API in python.

App/src/TestFittingModule2.cpp

App/src/TestFumiliLMA.cpp

App/src/TestIsGISAXS12.cpp

App/src/TestIsGISAXS13.cpp

App/src/TestMesoCrystal2.cpp

App/src/TestToySimulation.cpp

Core/Algorithms/inc/ISquaredFunction.h

Core/PythonAPI/inc/IntensityDataHelper.pypp.h

Core/PythonAPI/inc/PythonCoreList.h

Core/PythonAPI/src/IntensityDataHelper.pypp.cpp

Core/PythonAPI/src/PythonModule.cpp

Core/Tools/inc/IntensityDataHelper.h

Core/Tools/src/IntensityDataHelper.cpp

Fit/FitKernel/src/FitSuite.cpp

Fit/PythonAPI/inc/SquaredFunctionGaussianError.pypp.h

Fit/PythonAPI/inc/SquaredFunctionMeanSquaredError.pypp.h

Fit/PythonAPI/inc/SquaredFunctionSystematicError.pypp.h

Fit/PythonAPI/src/PythonModule.cpp

Fit/PythonAPI/src/SquaredFunctionGaussianError.pypp.cpp

Fit/PythonAPI/src/SquaredFunctionMeanSquaredError.pypp.cpp