Storage implementation exploration

[immortius]

• In-memory object storage
• Orientdb
• Other
• Benchmark

--- Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/27278547-storage-implementation-exploration?utm_campaign=plugin&utm_content=tracker%2F12992746&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F12992746&utm_medium=issues&utm_source=github).