VTX and RX antenna V-mount for DiA UAM

Mount for VTX and RX antenna to fit into [Universal antenna mount slot](https://www.thingiverse.com/thing:3421413).

**Attention!** Do not use combined RX and VTX mount. As VTX antenna's radiation is too close to RX antenna to cause bad RSSI. Use [RX front mount](https://www.thingiverse.com/thing:3580421), that can be mounted behind a gps-mount into the first Twist-lock hole.


At the bottom of the mount, there is a grip for 4mm thick antenna. On the top are tubes for RX antennas in V shape