Titan Aero Fan Layer Blower 5015 with BLTouch

I remixed Campy's fan shroud [thing:2567051] to fit my BLTouch sensor, as I use another stepper mount for my printer.

This design should fit any 3D printer with a Titan Aero extruder.

Here are my Marlin settings:

```
#define MIN_PROBE_EDGE 30
//my heatbed would crash with the frame if lower (test with your own printer for perfect setting)

#define X_PROBE_OFFSET_FROM_EXTRUDER 29 // X offset: -left +right [of the nozzle]
#define Y_PROBE_OFFSET_FROM_EXTRUDER -18 // Y offset: -