Putting the ingress point directly on one end of the FLOT means that AI
flights won't start searching and engaging targets until they reach that
point. If the front line has advanced toward the flight's departure
airfield, it might overfly targets on its way to the IP.
Instead, place an IP for CAS the same way we place any other IP. The AI
will fly to that and start searching from there.
This also:
* Removes the midpoint waypoint, since it didn't serve any real purpose
* Names the FLOT boundary waypoints for what they actually are
Fixes https://github.com/dcs-liberation/dcs_liberation/issues/2231.
* Initial refueling definitions.
* Adding refuel definitions.
* Initial functionality changes
* Regenerate package when adding refueling flight.
* Recursively change package waypoint.
* Fix mypy errors.
* Regenerate flight plans when tanker is added to package.
* Give tanker better starting position on package recovery.
* Add TOT calculation for refueling waypoint.
* Timing changes to Strike split point and Refueling start time.
* Add correct waypoint builder for refuel in tarcap and sweep. Remove restrict afterburner on refuel point.
* Always generate a refuel point for a package.
* Less arbitrary altitude in Refuel track start time calculation.
* Refueling waypoint no longer optional.
* Fix mypy gen error.
* Better discrimination of which tanker flight plan to make.
* Remove refuel tot calculations.
* Remove package regeneration on tanker flight addition.
