Creality CR-10S Z axis stop extender - very small

This is a remix of the part from mdiez -- on my CR-10S, the right hand side carriage was barely touching the right hand z-axis servo motor top mount. I shaved off a bunch of material so that there is only a little bit of increase in the bed height.

I think this needed when using Ikea mirror tiles on the bed (named LOTS -- 4 in a package) instead of the glass that comes with the printer. The mirrors from Ikea are not as tall. Might be useful for other situations too.

Original description: