Until we are confident in the long term supportability of hibernation we should make a customer explicitly opt-in to this feature. This gives us the opportunity for them to acknowledge a preview feature.

Provide a warning popup to inform customers that 'by hibernating the cluster, they're using a Technical Preview feature that are subject to SLA terms, as outlined in SLA. Provide them the KCS article - https://access.redhat.com/support/cases/#/case/03526316'. Proceed to hibernate only after customer confirm the message. Provide an option for customer to abort the action with a Cancel option as well. 

User Story: As an administrator of ROSA cluster, I need to optionally use hibernation feature that is available under technical preview so that I can experiment with the feature and take benefit where applicable and provide any feedback.

Acceptance Criteria: 

1. Only organizations with the capability "capability.organization.hibernate_cluster" must be able to Hibernate a running cluster or Resume a hibernated cluster.
2. The UI must make clear this is a Technical preview feature, and that by using it, the cluster will not be fully supported under Red Hat's SLA. Link to- https://access.redhat.com/articles/7012966 until a more appropriate documentation link is available
3. By clicking "Hibernate cluster", it is assumed the user understood the above information and the consequences for the cluster that hibernating could have.