small bugfix fo vis UI word wrapping when no labelers are active

com.unity.perception/Runtime/GroundTruth/PerceptionCamera.cs

             GUI.skin.label.font = Resources.Load<Font>("Inter-Light");
             GUI.skin.label.padding = new RectOffset(0, 0, 1, 1);
             GUI.skin.label.margin = new RectOffset(0, 0, 1, 1);
+            GUI.skin.label.wordWrap = true;
             GUI.skin.box.padding = new RectOffset(5, 5, 5, 5);
             GUI.skin.toggle.margin = new RectOffset(0, 0, 0, 0);
             GUI.skin.horizontalSlider.margin = new RectOffset(0, 0, 0, 0);