Add all crds to 'rabbitmq' category

[ChunyiLyu]

This closes #

Note to reviewers: remember to look at the commits in this PR and consider if they can be squashed

Summary Of Changes

For convenience, this adds all crds to category rabbitmq (PR that does the same to rabbitmqcluster: rabbitmq/cluster-operator#984 ).

So When you do kubectl get rabbitmq, you see:

❯ k get rabbitmq
NAME                            AGE
queue.rabbitmq.com/qq-example   8m26s

NAME                                  ALLREPLICASREADY   RECONCILESUCCESS   AGE
rabbitmqcluster.rabbitmq.com/sample   True               True               13m

NAME                            AGE
user.rabbitmq.com/user-sample   5m10s

... and all other rabbitmq resouces

Additional Context