OrbitDB support in radiks

[jorishermans]

Add an abstraction layer in how the central data is been saved. We could like it is now choose for a central traditional way to get people who are new with decentralization on board.

Implement an implementation with orbitdb to store data on a distributed way.
https://github.com/orbitdb/orbit-db

orbitDB runs on top of IPFS

Later we can support DatProject, and other peer-to-peer storage solutions.