[Gameplay] Police HQ 1.0

This mod adds 1 more building to the Law Enforcement circle

The Police Headquarters: 
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Compared with the original building, it costs a bit more and requires different resources, the reach of the emergency forces is +500% and the number of  emergency forces is 4 units
(only available in the Old World)

Also, The horse carriage has been replaced by a motorized car that fits better with the status of HQ.