Speed Camera v 1.1

A speed camera that triggers at about 50 km/h.
There is a small tolerance range for speed measurement to prevent measurement inaccuracies.
If you drive too fast while passing the speed camera you will be flashed and have to pay a fine.
The speed camera works in both directions.
One speed camera initally costs 150000$. After that the daily upkeep is 1000 $.
For the future it is still planned that you can set the speed limit when placing.

Version 1.1:
* Fixed a bug with loading values from the placeables xml
* Added blinking warning translation so other speed cameras can use the translation if they have enabled this feature
* Added an option so that the owner of the speed camera gains the money of the fine minus a little transaction fee