Added two new elements to LaneBoundary-Classification-Type: FENCE and TENSION_CABLE_SYSTEM

Issue: #642

Author: FlorianMueller87

osi_lane.proto

@@ -1068,6 +1068,14 @@ message LaneBoundary
             // A sound barrier.
             //
             TYPE_SOUND_BARRIER = 15;
+
+            // The lane boundary is a fence.
+            //
+            TYPE_FENCE = 16;
+
+            // The lane boundary is a tension cable system.
+            //
+            TYPE_TENSION_CABLE_SYSTEM = 17;
         }
 
         // The semantic color of the lane boundary in case of a lane markings.