Titan Aero mount for Makerfarm Pegasus/i3v

This is version two of my bracket/mount for a E3D Titan Aero on a Makerfarm Pegasus/i3v. I think it is basically finished and I'm happily using it on my printer. It includes an optional part fan and inductive autolevel probe. I'll probably tweak/improve the fan duct a little as time goes on and that small part can be printed separately.

The design files are on on onshape and you can [edit them there](https://cad.onshape.com/documents/ad950fd72b9bc802746a395e/w/e8289269467854323d3470bd/e/577