CAA C++ API Modifications

StructureInterfaces Framework Modifications in V5R17

Entity	SP	Modification	To Do
StructureInterfaces/Public/CATIStructureMember.h/CATIStructureMember/GetSection Prototype: `virtual HRESULT GetSection(CATDocument*oSectionDoc)=0;`	GA	MHBDM	The previous signature in CATDocument* did'nt allow to return the expected value, it so has been changed into CATDocument*&. No impact on existing client code.