General explanation for the providers

[jerodvenemafm]

Hey guys, this project is great. I was hoping to get a bit of explanation for what the system as a whole uses the providers for. So for example, if I set up a basic project locally with in-memory support, it works, but I'm considering the impact of deploying as a cluster. As such, I saw the redis provider, which has:

Provides Queueing support on Workflow Core backed by Redis.
Provides Distributed locking support on Workflow Core backed by Redis.
Provides event hub support on Workflow Core backed by Redis.

...but there is also the "Cluster Backplane" in conductor that has a redis option, but seems different.

Can you clarify the functions of each of these elements? The storage one is clear enough, as it simply stores the definitions and instances somewhere.