Update test data for new database structure for Entitlements V2 service

Entitlements V2 service uses graph database. The structure of this database used to be like this: parent node has an edge pointing to child node. To enhance performance during lookup operations (finding all parents of a child node) a decision was made to add an additional edge from a child node to parent node. A change in test data is required to make integration tests pass. Also, a change in Entitlements service is required.