Helper Silage Compacting

This mod allows the standard helper to compact silage in a bunker silo with a tractor. Simply place a tractor without attached implements inside the bunker silo and press the regular hire worker key (default: H). The helper drives back and forth autonomously, shifts sideways between passes, waits when another vehicle is inside the silo, and keeps compacting until stopped or fully compacted. Only tractors are supported. Trailers, harvesters, foldable tools, covers, and tip/unload animations are not controlled by this mod. Visible tyre tracks are created by True AI Track when that mod is enabled.