Spool Holder (Voron Vertical Mount)

I needed a better spool holder solution after the stock Voron one got worn and caused drag, which in turn was causing extruder skipping. The bearing supported one looked like a winner, but none of the mounts available put it in the stock location where I wanted it.
I took the mount part and the stock Voron part and merged them into this part. Now the holder mounts in the stock location and does not interfere with the side or top panels.