- add query to get communityCtxEntityId by id and type,
- add query to get communityCtxAttribyteId by ownerId and type,
- add queries to get communityCtxAssociationId by entityId (parent and
child) and type,
- change lookup(ownerId, types) for looking up attributes,
- add lookup methods in internal api (lookup(ownerId, modelType, types),
lookup(entityId, modelType, types)),
- implement lookups,
- junit tests for lookups.