With great power comes great responsibility!

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

It increases the throughput on UDP (from around 2Mb to 2.5Mb), while the
rate via USB & telemetry stay the same.

This is an adjustment due to the changed calling frequency of send()
(was 300 Hz, is now 100 Hz)

This makes also a slight stack size increase necessary (was 284 bytes left)

Will be moved to the receiver thread

Also remove the start() declration (there's no definition of that)

   Filter for channel 4 was modifying channel 1
   capture and overflow reads were using wrong paramaters
   in macros and addressing junk in memory.
   up_input_capture_get_filter was shifing results the wrong way.

The navigator was sending RTL commands in the wrong circumstances leading to a cycle between Navigator and Commander.

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>

Land detector: Choose a default alt limit parameter value that ensures regular users are not running into it