AI Baler And Forage Wagon

When using AI helpers, Farming Simulator 25 normally does not activate a baler if it’s working alone (without a mower/rake on the front).
This mod fixes that.

Features:
AI automatically turns the baler ON
Pickup is lowered and enabled
Works even when the baler is the only implement
Round balers slow down at ~95% full (to control chamber pressure)
AI fully stops when unloading a round bale (prevents driving off mid-unload)
Drives again automatically when the chamber is closed
No XML edits, no added specializations, and no vehicle type hacks