AppStateBindings constructor Null safety

1. irte_engine
2. app_state.bindings
3. AppStateBindings
4. AppStateBindings constructor

AppStateBindings class

1. Constructors
2. AppStateBindings
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. dependencies
8. noSuchMethod
9. toString
10. Operators
11. operator ==