Began adding occlusion classes.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Began implementing octree. Integrated SceneGraph calls to Renderer and
ATransformable3D.

Changed package name.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Implementing Octree member functions. Added interface to
ATransformable3D to abstract the interactions with the scene graphs so
that cameras, objects and lights can all be included.

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