Exports appear sideways about blender_bevy_toolkit

[sdfgeoff]

In the blender-godot-exporter I worked on a while back, the coordinate system conversion was a constant source of pain, particularly as we got into things like animations. Solvable, but every so often you'd foot-gun yourself with it by applying it twice or thinking it would be applied elsewhere.
Since I was doing this exporter for my own project and the coordinate system handedness was the same, I decided just to rotate my game to treat Z as up.

I'll leave this issue open for people to convince me that I should change to Y up, but at the moment I am not so inclined to do so.

[sdfgeoff]

If a person exports a whole scene, the scene is consistent between blender and bevy because everything is off by 90 degrees.

Now that camera's are exported I think I'll close this issue.