Provide state abstraction similar to that of the native bindings.

[jdef]

[vladimirvivien]

@jdef Curious on some detail for this one.

[jdef]

Might be nice to have something like this for go frameworks to use, for storing persistent state.

• https://github.com/apache/mesos/blob/master/src/state/state.hpp
• ZK-based impl: https://github.com/apache/mesos/blob/master/src/state/zookeeper.cpp