New Rotator Conveyor

We’ve updated our Conveyor library with new Rotator Conveyor. This is useful component if you need to manipulate the orientation of products on conveyor line and you don’t want to use physics. Compared to old model the geometries and parameters have been updated so that it matches better the look and feel of other VC conveyor models. Python script has been updated too so it should handle better situations where you chain multiple conveyors.