This function updates the vertical velocity integrator with the change
in hover thrust to avoid propagating discontinuities through the
controller when changing the hover thrust.
This is also important when using the hover thrust estimator as its
estimate has unconstrained dynamics and can cause drops or kicks when
the estimate updates faster than the velocity integrator.
Removing the skip_controller and interfaceMapping
concept and replacing it with a single method checking
if the position control update was successful and
return the result in the PositionControl.update().
