Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Initial graph building improvements.

Bounding boxes are can now be retrieved properly in initScene() through
the use of IGraphNodeMember.getTransformedBoundingVolume(). Bounding
spheres and boxes work properly for the octree.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>