Plan multiple CAP rounds per turn.

On station time for CAP is only 30 minutes, so plan three cycles to give
~90 minutes of CAP coverage.

Default starting budget has increased significantly to account for the
greatly increased aircraft needs on turn 1.

Fixes https://github.com/Khopa/dcs_liberation/issues/673

gen/flights/flightplan.py

@@ -243,6 +243,11 @@ class FlightPlan:
         else:
             return timedelta(minutes=5)
 
+    @property
+    def mission_departure_time(self) -> timedelta:
+        """The time that the mission is complete and the flight RTBs."""
+        raise NotImplementedError
+
 
 @dataclass(frozen=True)
 class LoiterFlightPlan(FlightPlan):
@@ -356,6 +361,10 @@ class FormationFlightPlan(LoiterFlightPlan):
             GroundSpeed.for_flight(self.flight, self.hold.alt)
         )
 
+    @property
+    def mission_departure_time(self) -> timedelta:
+        return self.split_time
+
 
 @dataclass(frozen=True)
 class PatrollingFlightPlan(FlightPlan):
@@ -406,6 +415,10 @@ class PatrollingFlightPlan(FlightPlan):
     def tot_waypoint(self) -> Optional[FlightWaypoint]:
         return self.patrol_start
 
+    @property
+    def mission_departure_time(self) -> timedelta:
+        return self.patrol_end_time
+
 
 @dataclass(frozen=True)
 class BarCapFlightPlan(PatrollingFlightPlan):
@@ -678,6 +691,9 @@ class SweepFlightPlan(LoiterFlightPlan):
             GroundSpeed.for_flight(self.flight, self.hold.alt)
         )
 
+    def mission_departure_time(self) -> timedelta:
+        return self.sweep_end_time
+
 
 @dataclass(frozen=True)
 class CustomFlightPlan(FlightPlan):
@@ -708,6 +724,10 @@ class CustomFlightPlan(FlightPlan):
             self, waypoint: FlightWaypoint) -> Optional[timedelta]:
         return None
 
+    @property
+    def mission_departure_time(self) -> timedelta:
+        return self.package.time_over_target
+
 
 class FlightPlanBuilder:
     """Generates flight plans for flights."""