Reolink D20 mount

Didn't want to buy more D20 mounting boxes, this won't fit all cameras, but does fit the RLC-842A and RLC-422.

If you need different mounting holes, let me know I'm happy to move them.

I also included both the STEP and the F360 files because I really appreciate when others include the design files.

Edit 2024-08-05:
Had a request for a lower profile box, added that per the request.