Plant Propagation Station Update and Re-release!

I was asked if it was allowed to alter this file to fit some specific test tubes, that would have been fine, but it was easier for me just to alter it in my app and re-upload for you all.

So we now have 3 sizes, I've added the XSmall size, which prints over 2 plates and fits tubes 3cmx10.5cm :).

0.2mm, 15%infill, 3walls. Needs some tree support for the joints.