We should probably make memory as a cache type rather than storage.
RecentStats() can then be removed from the storage interface.
Will try it out as a separate PR.
Lot of TODOs. But it should be good enough for anyone who wants to try
it out. Marked experimental.
Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)