Control / Dynamics screens for multicopters and fixed wing

[LorenzMeier]

These are all slider-type UI elements which take their min/max values from the Firmware meta data. Candidates:

Fixed wing:

• FW_AIRSPD_MIN 13 <- Slider minus 25%
• FW_AIRSPD_TRIM 15 <- Slider value, from min to max (6 to 80 or so)
• FW_AIRSPD_MAX 25 <- Slider plus 50%
• NAV_LOITER_RAD 150 <- circle in the UI, slider from min to max (30 to 500 or so)

Multicopter:

• MPC_XY_FF 0.2 <- Slider from min to max, min is "tortoise symbol", max is "rabbit symbol", no actual numbers shown
• MPC_XY_VEL_MAX 2 <- Slider from min to max, in m/s

[LorenzMeier]

Closing as stale.