Mezon Service Logic: Implements the logic of service components

This package implements the logic of service components.

It provides a base service logic class that takes as parameters an object that handles security aspects like user authentication, as well an object that handles the retrieval parameters that are necessary to configure the service logic.

A service logic implementation class is also provided to implement user session services like connecting to the session data storage container, retrieve a session identifier, the user identifier, user self-name and user permission check.