Add WITHSCORE option to ZRANK and ZREVRANK commands

[kshired]

Close #3178

• Add zRankWithScore and zRevRankWithScore methods.
• Add unit, integration, connection tests.

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• You use the code formatters provided here and have them applied to your changes. Don’t submit any formatting related changes.
• You submit test cases (unit or integration tests) that back your changes.
• You added yourself as author in the headers of the classes you touched. Amend the date range in the Apache license header if needed. For new types, add the license header (copy from another file and set the current year only).

[kshired]

@christophstrobl PTAL 🙏

[christophstrobl]

@kshired Thanks for the heads up - it's on the list but we've not gotten to it yet.