this makes it easier for a user to test that override is working
correctly in pre-flight checks. Otherwise override is hard to
distinguish from normal manual mode

this reduces self-heating of the sensor which reduces the amount of
altitude change when warming up. Apparently some individual sensors
are severely affected by this.

Unfortunately it raises the noise level, but Paul is confident it
won't be a significant issue

Add a new config for the Sparkle Tech 1.2m Pigeon flying wing.

Fix listener cmd

abort if within 2s there is no new message published

the loop variable i was increased even if no topic was updated. This means
less messages are outputed than specified.

Added LPE to testing, fix LPE logging, add SENS_EN_SF0X

Added mpc_alt_mode.

Added control state subscription.

Added SYS_MC_EST_GROUP to allow fine grained algorithm selection.