Changed the way how the grabbing behaviors work: The behaviours now know from...

Changed the way the grabbing behaviors work: There now are two behavior modes that determine the movement behavior of the parent actor: Snapping to the end of the interaction ray and moving relative to the interaction ray. Defaults have been set so that the specification of the behavior remains optional

requested review from @martin.bellgardt

assigned to @mmeierkrueger

requested review from @marcel.krueger and removed review request for @martin.bellgardt

Closing in favor of new interaction system.

closed