Fill Level Warning v 1.0.0.2

Fill level Warning for Harvesters. When the Fill level reaches 50% and 80%, a signal tone will be heard.
When the Fill Level has reached 80% the Beakon Lights are activated.

Version 1.0.0.2:
* Automobile manufacturers will only be queried once instead of with each run, which will save on performance

Credits:
Lord41