Quick fit Carriage with top Cable Chain Mount

Added a cable chain mount to the quick fit carriage.

I have it located on the top left of the carriage, facing towards the front.

Thanks to the authors for making these great parts.

Quick fit Carriage with top Cable Chain Mount - Fix - 3 is the latest version.

Seems like the cable chain mount is just close enough to help prevent the latch from rattling open if it were to loosen up. Bonus.