Adding curve type constructor param to SmoothJourney.
Adding curve type constructor param to SmoothJourney.

Curve type param must inherit from THREE.Curve. Choice of curve can now be done from JourneyWrapper.

mapillary/OpenSfM,edgarriba/OpenSfM,oscarlorentzon/OpenSfM,edgarriba/OpenSfM,NicWayand/OpenSfM,mapillary/OpenSfM,sunbingfengPI/OpenSFM_Test,edgarriba/OpenSfM,BrookRoberts/OpenSfM,oscarlorentzon/OpenSfM,mapillary/OpenSfM,NicWayand/OpenSfM,onecue/OpenSfM,sunbingfengPI/OpenSFM_Test,oscarlorentzon/OpenSfM,onecue/OpenSfM,sunbingfengPI/OpenSFM_Test,NicWayand/OpenSfM,BrookRoberts/OpenSfM,BrookRoberts/OpenSfM,sunbingfengPI/OpenSFM_Test,BrookRoberts/OpenSfM,sunbingfengPI/OpenSFM_Test,oscarlorentzon/OpenSfM,oscarlorentzon/OpenSfM,edgarriba/OpenSfM,onecue/OpenSfM,onecue/OpenSfM,edgarriba/OpenSfM,NicWayand/OpenSfM,onecue/OpenSfM,mapillary/OpenSfM,BrookRoberts/OpenSfM,NicWayand/OpenSfM,mapillary/OpenSfM