PTFE Tube guide clip for MK4 with MMU3

I wanted to be able to bypas my MMU3 unit when I do single color prints, so I didn't have to go through the process of changing filament in the buffer.

I wanted it to have the same angle as the MMU3 to have a similar travel from frame to extruder.

The model is inspired by many similar designs, but has been redesigned from scratch to have the look and feel I like.

The PTFE tube has a PC4-M5 in the end, making it very easy to swap between MMU and single mode.