vehicle yawed 90 degrees off

[Ryanf55]

When flying around, the vehicle is now 90 degrees off. Maybe some coordinates changed. This should be quick to fix.

I expect when flying, the nose points the right direction. The camera points the right way, suggesting the plane model itself just needs rotated around its yaw frame (body).

cesium has a couple ways to change this. We can test it's a bug in the model by loading other models distributed by them.

If it's purely a bug in the supplied drone model, let's use blender to fix the model.

An example model here that works: https://sandcastle.cesium.com/?src=HeadingPitchRoll.html&label=All