CSPACE-114: A basic Contact service is now integrated with the main services project...

CSPACE-114: A basic Contact service is now integrated with the main services project. The service's document types must be imported via 'ant deploy' for tests to run successfully.  The service currently implements only a subset of three fields of the Address Information group of the Contact Information Schema, awaiting further definition of that schema.  Because contact info appears to be relevant solely in the context of Person or Organization, this service may later be restricted to use only in those contacts, and its public REST interface may be removed.