Garbage collector support for Sunhockey Prusa 2015 S508

Here is an interresting part easy to print which support a servo who collect the purge garbage.

I never seen this mod before and I encourage you to do it mainly if you're not near the printer when it starts.

You'll need to know a little bit of G-Code, how to customize Marlin and a start script in your slicer.
There is no standard config cause each printer and servos are differents so you should adapt your code with your configuration. Perhaps you'll have to do some hacks into Marlin and a