Create example/tutorial around replaying actions across distributed systems

[mooreds]

Imagine you have distributed FusionAuth instances and want to sync them up. Like say you have user identities in a centralized location and then want to push them to a ship. Then folks can update their profile on the ship which is disconnected from the internet. Then, when the ship returns to port, you can capture those changes.

• Copy the database from the central server to the ship.
• Set up a local kafka instance to listen to all relevant webhooks (user and registration updates)
• When the ship returns to port, read from the kafka instance and push changes to the central server.
• Users may then make changes off the ship to the central server.
• When the next ship leaves, copy the database from the central server (so you get any changes made while users are on land).