Add type speed bump to stationary object

Signed-off-by: Schloemicher, Thomas AVL,AT <[email protected]>

Author: 0815-code

osi_object.proto

@@ -173,6 +173,10 @@ message StationaryObject
             // environment, like beacons.
             //
             TYPE_CONSTRUCTION_SITE_ELEMENT = 16;
+
+            // Object is a speed bump.
+            //
+            TYPE_SPEED_BUMP = 17;
         }
 
         // Definition of material types.