Make Camera scene mode independent.

[bagnell]

Make camera properties scene mode independent like Camera.transform.

For example, camera.transform = Transforms.eastNorthUpToFixedFrame(origin); works in all scene modes without any projection or swizzling components of the column vectors. This will add a little complexity to the camera properties, but simplify the rest of the API. Then, we can remove any "set cartographic" functions.

CC #1699.

[pjcozzi]

@bagnell is this still relevant?