Rabbitmq vhost and user support

[lmiccini]

Add new messagingBus and notificationsBus interfaces to hold cluster, user and vhost names for optional usage.
The controller adds these values to the TransportURL create request when present.

Additionally, we migrate RabbitMQ cluster name to RabbitMq config struct using DefaultRabbitMqConfig from infra-operator to automatically populate the new Cluster field from legacy RabbitMqClusterName.

Example usage:

  spec:
    messagingBus:
      cluster: rpc-rabbitmq
      user: rpc-user
      vhost: rpc-vhost
    notificationsBus:
      cluster: notifications-rabbitmq
      user: notifications-user
      vhost: notifications-vhost

Jira: https://issues.redhat.com/browse/OSPRH-22697

[openshift-ci]

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[openshift-ci]

@lmiccini: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/precommit-check	047781d	link	true	/test precommit-check

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[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/190f4bb7eca7441d8e42567b23824058

✔️ openstack-meta-content-provider SUCCESS in 3h 29m 35s
✔️ nova-operator-kuttl SUCCESS in 42m 46s
✔️ nova-operator-tempest-multinode SUCCESS in 2h 14m 56s
❌ nova-operator-tempest-multinode-ceph FAILURE in 2h 37m 49s

[lmiccini]

recheck

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/e49f704cb10943c295aeec1583a8186e

✔️ openstack-meta-content-provider SUCCESS in 3h 20m 36s
✔️ nova-operator-kuttl SUCCESS in 45m 29s
✔️ nova-operator-tempest-multinode SUCCESS in 2h 48m 01s
❌ nova-operator-tempest-multinode-ceph FAILURE in 3h 00m 42s

[lmiccini]

recheck