Prusa i3 frame reinforcement v2

I liked the original thing designed by Wingman94.
This is an interesting solution to fix one issue with Prusa I3 : too much freedom on vertical frame.

However, my version of the Prusa uses 10mm threaded rods, not 8mm, therefore I could not use Wingman94 parts.

I'm proposing this modified version of his design with 2 changes :
- The rear y-corners are higher and have 10mm holes
- The holder-top parts are reinforced