MobileAuthenticationClient constructor Null safety

1. nevis_mobile_authentication_sdk
2. nevis_mobile_authentication_sdk
3. MobileAuthenticationClient
4. MobileAuthenticationClient constructor

MobileAuthenticationClient class

1. Constructors
2. MobileAuthenticationClient
3. Properties
4. hashCode
5. localData
6. operations
7. runtimeType
8. Methods
9. noSuchMethod
10. toString
11. Operators
12. operator ==