[Feature]: Add Dragonfly datastore

[jub0t]

Is there an existing issue for this?

• [X] I have searched the existing issues

Summary

"Dragonfly is a modern in-memory datastore, fully compatible with Redis and Memcached APIs. Dragonfly implements novel algorithms and data structures on top of a multi-threaded, shared-nothing architecture. As a result, Dragonfly reaches x25 performance compared to Redis and supports millions of QPS on a single instance." - dragonfly

Why should this be worked on?

Dragonfly is a popular datastore.