EngineSettingsBindings constructor Null safety

1. irte_engine
2. settings.bindings
3. EngineSettingsBindings
4. EngineSettingsBindings constructor

EngineSettingsBindings class

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