Cleanup all Pulsar related metadata in delete-cluster-metadata command

[MarvinCai]

Is your feature request related to a problem? Please describe.
Currently seems the delete-cluster-metadata command is only cleaning the /admin/clusters and /managed-ledgers path in MetaStore, which might left some metadata in MetaStore like tenant and namespace data. And if user reuse same MetaStore for a new Pulsar cluster could observe tenant/namespace from previous installation.

Describe the solution you'd like
Provide an option in the delete-cluster-metadata command to completely remove all metadata in MetaStore.

Describe alternatives you've considered
N/A

Additional context
Add any other context or screenshots about the feature request here.

[mattisonchao]

Hi @MarvinCai
I will try to support this feature.

[MarvinCai]

@mattisonchao hi, are you still working on it?

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