Add support for migrating STREAM in cluster mode

[git-hulk]

Search before asking

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

Motivation

The STREAM type(partial commands) is supported in #745, but didn't add support for migrating in the cluster mode.

For more detail can see: https://github.com/apache/incubator-kvrocks/blob/unstable/src/cluster/slot_migrate.cc#L617

Solution

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!

[torwig]

@git-hulk I'll try to implement this.

[git-hulk]

@git-hulk I'll try to implement this.

cool, thanks @torwig