Rework complex distance, camera shot count calc for better back compat

Fix Survey additionalTimeDelay as it relates to hover and capture

Add camera start to transect entry even when taking images throughout survey area.

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Hack fix for terrain crash when new query comes through before old query is complete

First and last points in transects did not have altitudes set correctly

Only adjust existing waypoints. Does not add waypoints.

And fixes they found