Bear Upgrade 2.1.0-alpha0 (Patreon)

Dear Patreons, just a quick post to tell you that I pushed the first files for the future Bear 2.1 frame.

This new version includes the new Y axis.

They are on my GitHub, dev branch. Here it is:
https://github.com/gregsaun/prusa_i3_bear_upgrade/tree/dev