NesPI Controller back with optional switch

Added a switch-hole on the bottom (very small) to allow for a small switch.

I was using a USB controller for my build, and so I had to solder the leads directly to the USB pads on the Pi Zero. I wanted to still be able to use the USB if I needed it though, so I added a very tiny (3mm I think) switch, to switch between the controller interface, or whatever I connect to the USB.

I know my print in the picture is bad, I was calibrating a new printer, and used it as a test to see if it would f