Move logic's tortuosity computation to a TubeTK filter - 2/2
Move logic's tortuosity computation to a TubeTK filter - 2/2

Use the new filter in the logic.

sumedhasingla/VesselView,KitwareMedical/VesselView,agirault/VesselView,agirault/VesselView,matthieuheitz/VesselView,matthieuheitz/VesselView,KitwareMedical/VesselView,sumedhasingla/VesselView,sumedhasingla/VesselView,KitwareMedical/VesselView,agirault/VesselView,matthieuheitz/VesselView