Add more calibration measures to account for drones flying at different heights

[tessmichi]

Suggestion from Dennis: use software to raise each active drone id, one at a time, and scale the code to account for how far off the drone is from where it should be.

Maybe we can add a "percent off from normal" variable to each drone

[tessmichi]

According to Dennis, this is essentially done but needs to be done for every drone

[dennisss]

Tested and verified height calibration in my branch. Have a good set of values now for the fully loaded drone. Will be transferring to all other drones later this week after verifying their flight worthiness