Fixed issue with terrain texture

- fixed bugs
- other small improvements

- converted stringtable.csv to stringtable.xml
- filled requiredAddons in config.cpp
- was removed unused library

changed forest and field grass

- added trails
- added dry grass
- road signs moved to other addon
- added roads to the satellite map
- special covering has been removed from the airfield
- other improvements

- Added compatibility with new map

- Plastic toilets are replaced with wooden toilets
- Other minor fixes

- fixed problem with hag_object`s server key

- fixed auto landing