In order to copy the functionality of the CapacityReconciliationController to swatch-contracts while the leaving the existing functionality in place, we will need to copy related classes into swatch-contracts & enable the processing in such a way that both swatch-contracts & swatch-subscriptions can exist side by side without conflicting or duplicating work. 

Ensure that the unleash feature flag controls whether messages are processed by swatch-contracts or swatch-subscription-sync. 

Acceptance Criteria

• Including all the classes under the package “org.candlepin.subscriptions.capacity” from the monolith
• Including the Kafka configuration and tests
• Add an unleash feature flag to control whether the ReconcileCapacityByOfferingTask is processed by swatch-contracts or swatch-subscription-sync
• Test the force offering sync method using the PUT /internal/rpc/offerings/reconcile/{sku}
• Validate that if more than 100 subscriptions for the SKU that a message is sent to the new CapacityReconciliationWorker's topic & is processed properly
• Validate that work is processed by either the new ReconcileCapacityByOfferingTask or the old ReconcileCapacityByOfferingTask but not both.