AND-50: Initial steps towards synchronous endpoints. Demonstrates the ap...

...proach for GET /profiles.
I would not write this here, but in the Procedure class implementing the GET method of the Profile endpoint, this is, in GetProfileProcedure.java

We are writing classes that end up delegating in this methods. If we wrote these implementations in the exec() methods of those classes themselves, everything would be more object oriented, and we could avoid this level of delegation.