##derived from OpenTX v2.0.14 Master Branch
Based on OpenTX, pienk and Sam Tabor work
Here we add MAVLINK protocol to Taranis, Sky9x and 9xPro on a model based selection. We can have FRSKY protocols for a plane and MAVLINK for another. On uSD-enabled radios, it can log MAVLINK GPS Lat and Lon in a file to know last position of plane/copter (just in case ;-)