CSPACE-418 relation entity schema is flatten

CSPACE-418 relation entity schema is flatten
CSPACE-81,394 schema extension supported between consumer and service using multipart messaging, between service and repository using nuxeo repository. relationship service is refactored to use repository client and document handler. tenant binding updated for the relationship service. service context and document handler are further refactored to accommodate the use case of "local" service-service interaction and "remote" interaction. All remotely accessible services now use RemoteServiceContext and RemoteDocumentHandler. Removed unused RepresentationHandlers from all the services where applicable.
TEST: services/trunk mvn test passes

M    services/collectionobject/service/src/main/java/org/collectionspace/services/collectionobject/CollectionObjectResource.java
D    services/collectionobject/service/src/main/java/org/collectionspace/services/collectionobject/nuxeo/CollectionObjectRepresenationHandler.java
M    services/collectionobject/service/src/main/java/org/collectionspace/services/collectionobject/nuxeo/CollectionObjectDocumentModelHandler.java
M    services/collectionobject/service/src/main/java/org/collectionspace/services/collectionobject/nuxeo/CollectionObjectHandlerFactory.java
M    services/JaxRsServiceProvider/src/main/java/org/collectionspace/services/jaxrs/CollectionSpaceJaxRsApplication.java
M    services/JaxRsServiceProvider/pom.xml
M    services/common/src/main/java/org/collectionspace/services/common/repository/RepositoryClientFactory.java
M    services/common/src/main/java/org/collectionspace/services/common/repository/DocumentHandler.java
M    services/common/src/main/java/org/collectionspace/services/common/CollectionSpaceResource.java
M    services/common/src/main/java/org/collectionspace/services/common/AbstractCollectionSpaceResource.java
A    services/common/src/main/java/org/collectionspace/services/common/context/RemoteServiceContext.java
A  + services/common/src/main/java/org/collectionspace/services/common/context/RemoteServiceContextImpl.java
M    services/common/src/main/java/org/collectionspace/services/common/context/ServiceContext.java
D    services/common/src/main/java/org/collectionspace/services/common/context/ServiceContextImpl.java
A    services/common/src/main/java/org/collectionspace/services/common/context/AbstractServiceContext.java
R    services/common/src/main/java/org/collectionspace/services/common/relation/RelationJAXBSchema.java
R    services/common/src/main/java/org/collectionspace/services/common/relation/IRelationsManager.java
D    services/common/src/main/java/org/collectionspace/services/common/relation/RelationsManager.java
A    services/common/src/main/java/org/collectionspace/services/common/relation/nuxeo/RelationsUtils.java
A    services/common/src/main/java/org/collectionspace/services/common/relation/nuxeo/RelationConstants.java
D    services/common/src/main/java/org/collectionspace/services/common/relation/nuxeo/RelationsManagerNuxeoImpl.java
D    services/common/src/main/java/org/collectionspace/services/nuxeo/CollectionSpaceServiceNuxeoImpl.java
M    services/common/src/main/java/org/collectionspace/services/nuxeo/util/NuxeoUtils.java
A    services/common/src/main/java/org/collectionspace/services/nuxeo/client/java/RemoteDocumentModelHandler.java
M    services/common/src/main/java/org/collectionspace/services/nuxeo/client/java/DocumentModelHandler.java
M    services/common/src/main/config/tenant-bindings.xml
A  + services/common/src/main/resources/relations-common.xsd
D    services/common/src/main/resources/relation.xsd
M    services/acquisition/service/src/main/java/org/collectionspace/services/acquisition/AcquisitionResource.java
M    services/acquisition/service/src/main/java/org/collectionspace/services/acquisition/nuxeo/AcquisitionDocumentModelHandler.java
M    services/pom.xml
M    services/intake/service/src/main/java/org/collectionspace/services/intake/IntakeResource.java
M    services/intake/service/src/main/java/org/collectionspace/services/intake/nuxeo/IntakeHandlerFactory.java
D    services/intake/service/src/main/java/org/collectionspace/services/intake/nuxeo/IntakeRepresenationHandler.java
M    services/intake/service/src/main/java/org/collectionspace/services/intake/nuxeo/IntakeDocumentModelHandler.java
M    services/relation/service/src/main/java/org/collectionspace/services/relation/NewRelationResource.java
D    services/relation/service/src/main/java/org/collectionspace/services/relation/RelationResource.java
D    services/relation/service/src/main/java/org/collectionspace/services/relation/nuxeo/RelationServiceNuxeoImpl.java
M    services/relation/service/src/main/java/org/collectionspace/services/relation/nuxeo/RelationHandlerFactory.java
D    services/relation/service/src/main/java/org/collectionspace/services/relation/nuxeo/RelationNuxeoConstants.java
M    services/relation/service/src/main/java/org/collectionspace/services/relation/nuxeo/RelationDocumentModelHandler.java
D    services/relation/service/src/main/java/org/collectionspace/services/relation/RelationService.java
A  + services/relation/3rdparty/nuxeo-platform-cs-relation/src/main/resources/schemas/relations-common.xsd
D    services/relation/3rdparty/nuxeo-platform-cs-relation/src/main/resources/schemas/relation.xsd
M    services/relation/3rdparty/nuxeo-platform-cs-relation/src/main/resources/OSGI-INF/core-types-contrib.xml
M    services/relation/client/src/test/java/org/collectionspace/services/client/test/RelationServiceTest.java
A    services/relation/client/src/test/resources/log4j.properties
D    services/relation/client/src/test/resources/log4j.xml
M    services/relation/client/src/main/java/org/collectionspace/services/client/RelationProxy.java
M    services/relation/client/src/main/java/org/collectionspace/services/client/RelationClient.java
M    services/relation/client/pom.xml