FPV GoPro Session mount for Realacc X210 (QAV-X)

This GoPro Session mount is inspired from clevis41's design. It has been modified to fit better on a Realacc X210 frame (QAV-X).

Modifications are listed below
-Ability to raise camera angle from 35deg to >60deg (if you want a specific angle, just ask !),
-Support material is recommended but not needed on this design,
-Unobstructed image: the front wall of the mount is out of the GoPro Session's field of view,
-Fits directly to the horizontal standoff of the X210/QAV-X top plate. Needs on