Add vehicle horn to BaseMoving

[tbleher]

Describe the feature

Currently OSI does not describe use of the vehicle horn. This makes it impossible to use OSI for simulation of the surrounding noise.
Also agent models should be able to react to the use of the vehicle horn (as they do in reality - people react to the use of the vehicle horn).

Describe the solution you would like

BaseMoving should have a new bool field that is true when the vehicle horn is active.

Describe alternatives you have considered

None

Describe the backwards compatibility

New field - fully backward compatible.

Additional context

None