Airbot NOX support

[mooiweertje]

I've created a new target for my NOX compliant board. I'd like to share it so it can be part of the next release. Can I just push it ?

[teckel12]

@mooiweertje Create a pull request to the development branch. Additional information: https://github.com/iNavFlight/inav/blob/master/docs/development/Development.md

[mooiweertje]

First time doing this but I think I succeeded.

[mooiweertje]

Done: #4216

[shellixyz]

PR to add the board staging, closing

[mooiweertje]

I created a version where GPS can be connected to PPM and LED pins via Soft Serial 2 on 9600/19200 baud.

SS2-TX on PPM
SS2-RX on LED

example usage:
UART 1 -> WTF-OSD
UART 2 -> ELRS
SS2 -> GPS on 9600/19200baud.

jnav_5.0.0.0_NOX.zip

PS
When disarmed DJIOSD will show max speed/max altitude/max distance in JNAV