Neumayr visualize aabb

[AndreaNeumayr]

introduce flag: visualizeBoundingBox

• if enabled the bounding boxes of all collision objects is displayed with a grey box
• test it in several test models

[GerhardHippmann]

Update of BB visualization is only necessary if multibodyResiduals3!/compute_vis is true. Do you check this?

[AndreaNeumayr]

The bounding boxes are children of world and stored there as well. Therefore the absolute translation is set directly (see e.g. supportVisuObj1A).
Further, world is not stored in updateVisuElements, therefore it can't be updated.