Feature Request: Support for ZStd Compression of Datapoints

[bbrandt]

GZip compression currently supported:
#261

http://facebook.github.io/zstd/ is usually faster while also providing better compression.

[bbrandt]

@polomani Would this first have to be implemented server-side on CDF?

[polomani]

@bbrandt good point, I assumed you have done some research? If not, then it's most likely not supported by the backend and it's a bigger task to do it there (multiple backend teams involved)