Upgrade tokio to 1.0
Change some api

Implement PartialEq on types to allow easier testing

remove 'i' char in tag‘s integer serialization

add support to authentication with jwt token

response type may combination all kind of value, should use json value to parse

Allow to use rustls-tls instead of openssl with a feature

1. Use async io on http client
2. Change lots of api

Avoid .unwrap() in ping/get_version

1. Upgrade ssl dependencies
2. Modify part of the code with clippy

Support chunked responses.

Thinks for @miracle2k work.