Option to ignore trailer bounding box

Feature

Some trailers have a rotating front axle, like in this image.

One way of modeling such a rotating axle is as a separate trailer element with only one axle. The actual trailer will then be connected to the "axle" trailer.

Example from esmini: video clip

A side effect of this approach is a separate bounding box of the rotating front axle. It may be useful to skip that separate bounding box in the ground-truth representation.

Solution

Add boolean attribute ignoreBoundingbox to the vehicle class.

Alternative solution

Add boolean attribute ignoreBoundingbox to the ConnectTrailerAction.

Backwards compatibility

Both solutions are fully backward compatible since they just introduce a new attribute in existing element.