Support BinaryEntity in entity enrichment and deep fetching

[novoj]

Currently the deep fetching and entity enrichment is not fully implemented for BinaryEntities on Evita Java Client. The BinaryEntity is a research concept that is not yet fully completed and its benefit properly measured by performance tests. This issue targets to finalize binary entity:

• enrichment / limitation on the server side
• deserialization on the client side
• performance tests measurement