5+1 Multicolor Cute Unicorn

I made a few changes on the MMU Remix from DesignFlaw06:

- Scaled the unicorn to 160mm height
- Right Ear part is thicker for better printing
- Hair part on forehead is also thicker for better printing
- Horn is scaled up a bit ~10%
- 3 Perimeters on Body part, because with some white filaments you can see the "wipe into infill" from the other colours with only 2 perimeters
- Added nose holes in different colour
- Added different Extruders for tail and hair, so you have different rainbow colour transition on both parts
- Added Colorchange Pause on height 122mm for swapping filament of Extruder 5 for the Horn
- You can also remove the colour change at 122mm and print the tail and hair in the same colour, so you get one Extruder free for the horn
- Painted almost all seams by hand inside the parts, so there is only a visible seam on the tail, on the back side of the front feet and on the top part of the hair
- Painted custom supports on few spots
- 3 Instances for maximum w