Use jsoniter-scala instead of circe

[plokhotnyuk]

The library supports Scala.JS and Scala Native platforms and shows the best in JVM world performance of parsing and serialization for floating point numbers.

Below are results of benchmarks for a sample of the GeoJSON model using different JSON parsers including circe and circe with jsoniter-scala booster:

[satabin]

Hi @plokhotnyuk, thanks for the issue. I think we can add a jsoniter integration, the same way we did for circe. I must admit I don't have much experience with it now, but it shouldn't be a big problem. I will investigate.