Pi Zero PCI mount (Version 2 is available in comments)

Version 2 available and is a thinner mounting plate of 3mm VS 4mm resulting in faster printing times while retaining appropriate strength. Also added a hold down tab on the connector side of the SBC card as well as a few cosmetic repairs
https://www.thingiverse.com/thing:3032234

A request was made for a mount for a Pi Zero-W with a relay. I did not have dimensions of the relay but I made a part
I cobbled this up. No mounts for a relay but that would be easily added (or just drilled) and I