Restore expected behavior of the NDOF, especially in the context of
non-3D editors. It addresses the following issues:
- Object mode, 3D viewport:
With "Lock Horizon" off, the rotation axes will invert unexpectedly,
making the camera behave similar to a "Fly mode".
- Fly mode, 2D editors:
Changing a navigation mode to "Fly" makes no effect.
Applies to UV and Nodes editors, Camera Preview etc.
Related to #140165
This includes some minor API changes back-ported from `main`
since the PR was created for `main`.
Co-authored-by: Patryk-Skowronski <patryk_skowronski@3dconnexion.com>
Ref !140537
5280ebc289