ConditionsStorage constructor Null safety

1. wings_data_model
2. wings_data_model
3. ConditionsStorage
4. ConditionsStorage constructor

ConditionsStorage class

1. Constructors
2. ConditionsStorage
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Static properties
12. allConditions