Proof that clients support gzip and deflate compression

[vitalijr2]

Bunch of clients support gzip and deflate compression except of JAX-RS2, OkHTTP and Google HTTP client.

• OkHTTP client with an interceptor can proccess GZIP response, e.g. https://stackoverflow.com/questions/51901333/okhttp-3-how-to-decompress-gzip-deflate-response-manually-using-java-android
• Google HTTP client with NetHttpTransport does not support GZIP response at all but we can use Apache HTTP client as its transport
• JAX-RS2 client does not support GZIP responses out-of-the-box but we can register a class that implies it like Jersey implementation does it, see https://stackoverflow.com/questions/22519642/how-to-enable-gzip-compression-for-content-encoding-with-jersey-jax-rs-2-0-cli

Closes #1697

[vitalijr2]

I think this pull request could be declined and the issue is closed as it is just demo to proof all works as expected.

[velo]

I think this pull request could be declined and the issue is closed as it is just demo to proof all works as expected.

More testing always better