Make Camera up align with ellipsoid::geodeticSurfaceNormal below defined height (or Fixed Frame to East North Up Frame)

When moving the Camera close to the surface of the Globe it becomes apparent that the camera controls are applied in the Fixed Frame. This results in camera rotation that looks as if a roll is applied with respect to the horizon. In our use case it would be desirable to have the camera controls behave in the East North Up Frame. Perhaps a fixedFrameToEastNorthUpControlsHeight property could be set on the Camera that immediately or gradually changed between the two modes when the camera moves below that height.

Or is it simple to achieve this control scheme in another way?

Start by examining the Camera controls and how the Fixed Frame is used near the Globe surface. Compare that behavior with the requested East North Up Frame mode, including whether switching should be immediate or gradual below a defined height. Done means the desired near-surface horizon alignment and a clear transition rule are established.

Written by the indexing model from the issue text.