EZP-21103: Added router to valueObjectVisitor
EZP-21103: Refactored ContentTypeGroup VOV + test
EZP-21103: Refactored router testing in VOV tests
EZP-21103: Refactored Version VOV + test
EZP-21103: Refactored VersionInfo VOV + test
EZP-21103: Refactored UserSession VOV + test
EZP-21103: Refactored VersionList VOV
EZP-21103: Refactored UserRefList VOV + test
EZP-21103: Refactored UserGroupRefList VOV + test
EZP-21103: Refactored URLWildcardList VOV + test
EZP-21103: Refactored ContentList VOV + test
EZP-21103: Refactored URLWildcard VOV + test
EZP-21103: Refactored URLALias VOV + test
EZP-21103: Refactored URLALiasRefList VOV + test
EZP-21103: Refactored Section VOV + test
EZP-21103: Refactored Root VOV + added test
EZP-21103: Refactored RoleAssignmentList VOV + test
EZP-21103: Refactored Role VOV + test
EZP-21103: Refactored RestUserRoleAssignment VOV + test
EZP-21103: Refactored RestUserGroupRoleAssignment VOV + test