Support Top-K data structure and commands

[PragmaTwice]

Search before asking

• [X] I had searched in the issues and found no similar issues.

Motivation

Redis Stack already supports this probabilistic data structure, and we can support it too.

https://redis.io/docs/latest/develop/data-types/probabilistic/top-k/ https://redis.io/docs/latest/commands/?group=topk

Solution

Please share your design proposal through issue/discussion before submitting a PR.

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!