Implement Summary metric about client_rust

[mxinden]

@palash25 unfortunately I don't have any experience with quantile algorithms, neither in general nor in Rust. Thus no preference. Sorry.

I found one that implements CKMS would it be ok to use this? https://github.com/blt/quantiles

Looks fine to me.

[mxinden]

Thank your for the project :)

Glad that it is useful. ❤️

I found myself missing an implementation of the Summary metric, so decided to file an issue in case anyone (maybe myself) decides to contribute an implementation.

Would be good to support the Summary metric type. Contributions are most certainly welcome!

Whoever is picking this up, let me know if you need any help.

[palash25]

@mxinden hi i would like to work on this could you assign the issue to me?

[mxinden]

Done. Thanks @palash25. Let me know in case you need any help.

[palash25]

hi @mxinden do you have any preference on what crate to use for the underlying quantile algorithm? I found one that implements CKMS would it be ok to use this? https://github.com/blt/quantiles

[palash25]

hi @mxinden sorry for the multiple pings but can you please take a look at this #67 (comment) ? i updated the PR