Merge branch 'customff' into develop

Core/PythonAPI/src/ConstKBinAxis.pypp.cpp

Core/PythonAPI/src/Crystal.pypp.cpp

Core/PythonAPI/src/CustomBinAxis.pypp.cpp

Core/PythonAPI/src/DistributionCosine.pypp.cpp

Core/PythonAPI/src/DistributionGate.pypp.cpp

Core/PythonAPI/src/DistributionGaussian.pypp.cpp

Core/PythonAPI/src/DistributionLogNormal.pypp.cpp

Core/PythonAPI/src/DistributionLorentz.pypp.cpp

Core/PythonAPI/src/FTDistribution1DCauchy.pypp.cpp

Core/PythonAPI/src/FTDistribution1DCosine.pypp.cpp

Core/PythonAPI/src/FTDistribution1DGate.pypp.cpp

Core/PythonAPI/src/FTDistribution1DGauss.pypp.cpp

Core/PythonAPI/src/FTDistribution1DTriangle.pypp.cpp

Core/PythonAPI/src/FTDistribution1DVoigt.pypp.cpp

Core/PythonAPI/src/FTDistribution2DCauchy.pypp.cpp

Core/PythonAPI/src/FTDistribution2DCone.pypp.cpp

Core/PythonAPI/src/FTDistribution2DGate.pypp.cpp

Core/PythonAPI/src/FTDistribution2DGauss.pypp.cpp

Core/PythonAPI/src/FTDistribution2DVoigt.pypp.cpp

Core/PythonAPI/src/FixedBinAxis.pypp.cpp