Start moving EllipsoidGeometry to use a VertexFormat.
Add normals to EllipsoidGeometry.
Merge branch 'batching' into ellipsoidGeometry
Add texture coordinates to ellipsoid geometry.
Add normals and binormals to ellipsoid geometry.
Update doc and remove some memory allocations.
Add tests.
Merge branch 'batching' into ellipsoidGeometry
Updates based on review.
Merge pull request #777 from AnalyticalGraphicsInc/ellipsoidGeometry

Ellipsoid geometry