New fan duct for the Titan Aero extruder mount

This has not been posted and may not be since there are a ton of better Titan Aero mounts for the CR10 / Ender3.  My mount however has had one major issue which was the fan duct.  The original duct was too close to the hot end, and over time the airflow became disturbed as the duct warped a bit.  Also it was not low enough.  I redesigned it to hopefully fix both issues and feel that this new duct should be pretty robust and offer a much less restricted airflow than the old one.

The old version of the duct is below, and regardless of how well the new one works, I won't be going back to the old design.