Petsfang Bondtech Direct for E3D V6 on Geeetech A10/A20/A30

A remix of https://www.thingiverse.com/thing:2993902 and https://www.thingiverse.com/thing:2963434 for Geeetech A10/A20/A30.

All credits go to the original author: https://www.thingiverse.com/dpetsel. I just remixed stuff.

**!!! WARNING !!!**
I have NOT test printed this. I will be testing it in a few days.

**2019.04.10 Update**
1. Carriage plate holes misalignment confirmed. It's off by about 1.5mm on X and around 0.5mm on Z. Working on a fix.
2. Extruder and stepper motor support p