In CppClassPtrReturnValue, check for NULL pointer, map into None
In CppClassPtrReturnValue, check for NULL pointer, map into None

cawka/pybindgen,caramucho/pybindgen,cawka/pybindgen,cawka/pybindgen,caramucho/pybindgen,caramucho/pybindgen,cawka/pybindgen,caramucho/pybindgen