Feature: HTTP Proxy

[icyleaf]

in v0.8.0 Halite add local cache feature(#24), though this does not debug friendly, it could not review the raw directly(#15, #22)

Halite use many chainable methods and high duplice from HTTP::Client, I decide to rewrite a new HTTP Connection and manage itself inside Halite.

Reference:

• Ruby: http (Halite was heavily inspired)
• Python: requests (urllib.request.getproxies)

[icyleaf]

I wrote a simple HTTP Connection and tests passed with Tunneling TCP based protocols through Web proxy servers

[icyleaf]

Maybe socks5 proxy can be consider with socks shard.

[nbulaj]

Very expected feature :+1: