RESP3 Support
- Some commands responses in RESP3 aren't stable yet and therefore return an "untyped" ReplyUnion.
Sentinel
TypeMapping
Correctly types Multi commands
Note: some API changes to be further documented in v4-to-v5.md
* Removed stream delete command to allow consumer group example to work.
* Adds stream consumer group example.
* Adds stream consumer group example code.
* Update README.md
Co-authored-by: Leibale Eidelman <leibale1998@gmail.com>