Rename Orientation to Location.

And replace old Location.
Update Animation.
Update AnimationSet and AnimationStrip.
Small tweaks.
Update TriangleFan.

Other small tweaks.
Various changes.
Rename texIndex to surfaceIndex.
Centralize parsing of Sphere, CylSphere and Plane.

Also remove unused LineSegment junk.
Rename Doodad to StaticObject.
Normalize loop variables.
Fix hiding of lighting/portal polygons.