Purpose/Overview:
When Shared Instances are updated, Shadow Instances should be updated as well.

Requirements/Scope:

1. Shadow Instance should reflect the same HRID and other data points as the Shared Instance

Approach:

• List to the inventory.instance kafka topic for updates to instances.

• When a Shared Instance is updated - 

• get the locations of Shadow Instances from mod-consortia. This if from `/consortia/<consortiumId>/sharing/instances?query=sourceTenantId=college and instanceIdentifer=<UUID>`

• Update the Shadow Instances at all locations returned by mod-consortia

Acceptance criteria:

• Shadow Instance reflects updates to Shared Instance

• Update time should be less than 3 seconds in a nominally operating cluster.

• Covered by unit tests

• Karate tests are created/updated

• Module documentation updated

• Logging is well-defined