trajCopy = copy(traj)
creates a deep copy of a fixedwingTrajectory or a
multirotorFlightTrajectory object. The copy has the same properties as
the original.
Deep copy of the flight trajectory, returned as a
multirotorFlightTrajectory object or a
fixedwingFlightTrajectory object. The copy is of the same object
type, and has the same properties, as the object specified to
traj.