[cleanup] use isEmpty for string comparison
[fix] load entity early and avoid calling fromScim() unnecessarily
[fix] add diamond operator to get rid of warning
[cleanup] moved nosonar to the right line
[cleanup] moved extension entity classes to parent package
[cleanup] made value class final
[cleanup] added nosonar for a long method
[cleanup] Our entities don't need to be serializable.
[cleanup] Made the primes for hashCode() final
[cleanup] Removed unnecessary serialVersionUid
[cleanup] turned Boolean into boolean to ensure initialization, rename getter according to bean spec
[cleanup] Removed unnecessary test
Merge pull request #54 from wallner/sonar_cleanup

Sonar cleanup