Helper scripts to gather users' rmq cluster information when reporting bugs/issues

[ChunyiLyu]

Is your feature request related to a problem? Please describe.

Cluster operator should have a script that can gather useful information from a RMQ cluster and the operator to help the team trouble shoot users problems.

Describe the solution you'd like
We can add this functionality to our cli plugin. For information that we first collect, we can use our debugging guide as a start
Strimzi-kafka-operator script for inspiration

Describe alternatives you've considered

Additional context
Note that the script does not need to be comprehensive at first. This is something we can build on and improve on over time.

[github-actions]

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