PATH-842, VWR-29431: BUGFIX Correcting a regression introduced by the fix for...

PATH-842, VWR-29431: BUGFIX Correcting a regression introduced by the fix for PATH-542.  The viewer calculated rotation resulting from an object's angular velocity was being incorrectly reset when the corresponding object update was received.  With this bugfix, the rotation resulting from the angular velocity is accumulated separately and is re-appplied when the object update resets the object's rotation.