Add clustermgmt flag to create kafka

[dimakis]

• Updates the CLI to display cluster ID and Name for register-cluster, deregister-cluster
• adds the cluster-mgmt-api-url and access-token flags to kafka create
• fixes typos and implements better wording
• addresses some comments brought up in the sprint review demo

Verification Steps

1. Register an OpenShift cluster
2. Create Kafka clusters interactively
3. Deregister Hybrid OpenShift clusters

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation change
• [ ] Other (please specify)

[jackdelahunt]

• [x] De-register
• [x] Register
• [x] Create kafka
• [x] De-regsiter again

[jackdelahunt]

Also maybe worth to squash some of these commits, I don't normally care but 13 is a lot

[jackdelahunt]

Also we have a convention in the CLI that packages that contain commands need to match the name of the command and filename. Right now dedicated list has a package listclusters which has the command list. So the package needs to be renamed to list