- do not run TECS for VTO which are in rotary wing mode
- reinitialise TECS the first time we start using it again

This change fixes a bug where hash-aware QGC using the old spec would continuously request the parameter list every time it received a mismatched hash.

 - When listing all params, lead with _HASH_CHECK value for cache load
 - When set value on _HASH_CHECK is rx'd, stop any ongoing listing req

the uncostrained demanded pitch was never initialized which
could lead to large initial pitch integral values

and tighten z deadband

Updated matrix lib to get slice.

increase stack size for frsky telemetry daemon

Updated matrix lib.

prevent sudden thrust setpoints when vehicle has reached ground
after landing

updated timeout logic to work only on waypoints with forced headings, updated param docs accordingly

transition alignment will force heading now and go to RTL if it cannot reach it in time, handle mission failure correctly, reset after mission update, issue message with actual problem

implemented basic heading timeout for waypoint acceptance, added parameter for yaw error on waypoint heading acceptance, set yaw timeout for vtol default