Concern separation - final refactoring

Split the project in four packages:

• Application, containing the webapp
• Persistence, containing the hibernate persistence
• Jobs, containing the Job to activate downstream pipeline
• APIs, containing the APIs to put everything together. Those are basically:
  x DTO interfaces + Factory
  x ServiceFactory for the persistence Layer
  x Analysis manager interface

Dependencies should be the following:

• Application: JSF + Primefaces+ APIs
• Persistence: Hibernate + APIs
• Jobs: APIs + ...

At the moment there are some services (RequestFormService, ExternalUserService not following the API+Implementation pattern . Refactor this!!!!)

This will give us a complete modularity in order to write custom Persistence and Jobs layers