NEAuthService constructor Null safety

1. netease_roomkit
2. netease_roomkit
3. NEAuthService
4. NEAuthService constructor

NEAuthService class

1. Constructors
2. NEAuthService
3. Properties
4. hashCode
5. isLoggedIn
6. onAuthEvent
7. runtimeType
8. Methods
9. login
10. logout
11. noSuchMethod
12. toString
13. Operators
14. operator ==