KAFKA-13914: Add command line tool kafka-metadata-quorum.sh

[dengziming]

More detailed description of your change, if necessary. The PR title and PR message become the squashed commit message, so use a separate comment to ping reviewers. Add MetadataQuorumCommand to describe quorum status, I'm trying to use arg4j style command format, currently, we only support one sub-command which is "describe".

# describe quorum status
kafka-metadata-quorum.sh --bootstrap-server localhost:9092 describe

# specify AdminClient properties
kafka-metadata-quorum.sh --bootstrap-server localhost:9092 --command-config config.properties describe

Summary of testing strategy (including rationale) for the feature or bug fix. Unit and/or integration tests are expected for any behaviour change and system tests should be considered for larger changes.

MetadataQuorumCommandTest and MetadataQuorumCommandErrorTest

Committer Checklist (excluded from commit message)

• [ ] Verify design and implementation
• [ ] Verify test coverage and CI build status
• [ ] Verify documentation (including upgrade notes)