This is the final list of parameters the Solo requires for ArduCopter
3.5.0+ that differ from ArduCopter 3.5.0 defaults. I ran a
`mavparmdiff` on the defaults vs Solo to generate this list. I added
`FRAME_TYPE` back even though it is default just because it is rather
critical. I removed all the parameters that are individual vehicle
specific (calibrations, pressure, etc).