GE220 replacement 5mm spacer (FC screw holes removed)

This is a 98% clone of the GE220 5mm spacer. It's not completely identical to the original, but as close as I could get it. I removed the flight controller screw holes so the screws don't have to poke out the bottom of the frame and and have the battery sit on them. And so you can use shorter screws to mount the FC.