Switch to new vector conversion functions.

Switch to new vector conversion functions.

Modified Files:
	simgear/math/SGGeod.cxx simgear/math/SGQuat.hxx
	simgear/math/SGVec2.hxx simgear/math/SGVec3.hxx
	simgear/math/SGVec4.hxx simgear/scene/material/Effect.cxx
	simgear/scene/model/SGInteractionAnimation.cxx
	simgear/scene/model/SGMaterialAnimation.cxx
	simgear/scene/model/SGRotateTransform.cxx
	simgear/scene/model/SGScaleTransform.cxx
	simgear/scene/model/SGTranslateTransform.cxx
	simgear/scene/model/animation.cxx
	simgear/scene/model/particles.cxx
	simgear/scene/model/placement.cxx
	simgear/scene/model/shadanim.cxx
	simgear/scene/sky/CloudShaderGeometry.cxx
	simgear/scene/sky/cloud.cxx simgear/scene/sky/cloudfield.cxx
	simgear/scene/sky/dome.cxx simgear/scene/sky/sky.cxx
	simgear/scene/tgdb/GroundLightManager.cxx
	simgear/scene/tgdb/SGOceanTile.cxx
	simgear/scene/tgdb/SGTexturedTriangleBin.hxx
	simgear/scene/tgdb/SGVasiDrawable.cxx
	simgear/scene/tgdb/TreeBin.cxx simgear/scene/tgdb/obj.cxx
 	simgear/scene/tgdb/pt_lights.cxx
	simgear/scene/util/SGUpdateVisitor.hxx