Sophos XGS 116/118 Rackmount Ears

This is an updated version of https://www.thingiverse.com/thing:5535686

I have updated this design to "hug" the XGS firewall a bit more. It looks better and the mounting holes are more aligned to the mount sits more flush with the front of the firewall.

It still has a tab that will help support the rear of the firewall.