[WIP] feat snowflake plugin

[dickens7]

#4209

This PR is a draft version, used to discuss implementation

[moonming]

I am not sure that do we should add a plugin for request id?

[Yiyiyimu]

I am not sure that do we should add a plugin for request id?

Agreed. Since it's an alternative algorithm for request-id, it might be better to add an enum argument to request-id, instead of using it as another plugin

[dickens7]

I am not sure that do we should add a plugin for request id?

Agreed. Since it's an alternative algorithm for request-id, it might be better to add an enum argument to request-id, instead of using it as another plugin

It is planned like this. Now we are solving the problem that the snowflake algorithm can only have 1024 workers

[Yiyiyimu]

It is planned like this. Now we are solving the problem that the snowflake algorithm can only have 1024 workers

Do you mind sharing the reason for "planned like this"

[dickens7]

Refactor