Prusa mk3 bed level / first layer test file

It seems like a lot of folks on reddit have questions about getting their first layer height properly calibrated. A big part of the problem I think is that the prusa first layer file only has one little square at one location.

So I made this larger version that has nine squares, spaced across the important corners. I've included prebuilt gcode for PLA and PETG.

This file helps for two reasons:

* It gives you lots of time per print to dial in you "live z adjustment" - just turn the kn