FarmState constructor Null safety

1. farmershands
2. farm_state
3. FarmState
4. FarmState constructor

FarmState class

1. Constructors
2. FarmState
3. Properties
4. currentFarm
5. farm
6. farms
7. hashCode
8. hasListeners
9. runtimeType
10. Methods
11. addListener
12. dispose
13. noSuchMethod
14. notifyListeners
15. removeListener
16. toString
17. Operators
18. operator ==