Novena LCD mounting shim

**Latest code mirror:** https://github.com/fincham/misc-models/tree/master/novena

A shim with locating pin for use on the four corner mounts of the Kosagi Novena laptop's LCD panel.

You will need to print this at pretty close to 0.7mm height for it to be useful, and additional shims may be needed to raise up the LCD back bracket slightly.