niflib: update to latest nif.xml

include/gen/OblivionSubShape.h

include/gen/UnknownMatrix1.h

include/obj/BSBlastNode.h

include/obj/BSDamageStage.h

include/obj/BSFrustumFOVController.h

include/obj/BSMultiBound.h

include/obj/BSMultiBoundAABB.h

include/obj/BSMultiBoundData.h

include/obj/BSMultiBoundNode.h

include/obj/BSMultiBoundSphere.h

include/obj/NiControllerSequence.h

include/obj/NiGeometryData.h

include/obj/NiMaterialProperty.h

include/obj/NiParticlesData.h

include/obj/NiPhysXActorDesc.h

include/obj/NiVertexColorProperty.h

niflib_VC2008.vcproj

src/gen/OblivionSubShape.cpp

src/gen/UnknownMatrix1.cpp

src/gen/register.cpp