Dlight gizmo

[JohnBrookes]

Create a lightPicker.
Add a directional light to that light picker.

Select the light in the view.

Click on the view to deselect the light.

Select the light again.

Issue
Light gizmo rotation is now wrong.

[JohnBrookes]

Adding
content.rotationX = content.rotationZ = 0;
to
RotateGizmo3D.show (line378)

fixes issue