New COnstKBinAxis and corresponding unit and functional tests.

Core/PythonAPI/inc/ConstKBinAxis.pypp.h

Core/PythonAPI/inc/PythonCoreList.h

Core/PythonAPI/src/ConstKBinAxis.pypp.cpp

Core/PythonAPI/src/PythonModule.cpp

Core/Tools/inc/ConstKBinAxis.h

Core/Tools/inc/IsGisaxsAxis.h

Core/Tools/inc/OutputDataIOHelper.h

Core/Tools/inc/VariableBinAxis.h

Core/Tools/src/ConstKBinAxis.cpp

Core/Tools/src/IsGisaxsAxis.cpp

Core/Tools/src/OutputDataIOHelper.cpp

Core/Tools/src/VariableBinAxis.cpp

Tests/FunctionalTests/TestPyCore/intensitydata_io.py

Tests/UnitTests/TestCore/ConstKBinAxisTest.h

Tests/UnitTests/TestCore/IsGisaxsAxisTest.h

Tests/UnitTests/TestCore/main.cpp

dev-tools/python-bindings/settings_core.py