A reconstruct for shadowsocks-go request for review!

Hey guys, I have reconstruct the shadowsocks-go and just passed all local test.

Now request for review.

What's New

• Redesigned for server use
• Add plenty of log
• Reconstruct this project, finish the job in ss-local and ss-remote
• Bug fixing and stability improvement
• Redesign the interface for easy extension, and use as a package in go
• Add more features just like load balancing between multi server
• Make up the Encrypt packet with a better interface for easy extension
• Fix up the UDP module for ss
• Support the standard SOCKS5 protocol in shadowsocks-client side
• Add the AEAD cipher
• Docker file ready for use!
• Replace the facilities with go standard library
• Add DNS server option for server
• Add vendor for go package management

WIP

• TCP UDP tunnel module
• Proformance monitor with go pprof
• Implement the management interface
• TFO supported on linux
• Support PAC list

https://github.com/shadowsocks/shadowsocks-go/pull/221

Start by reviewing pull request #221, which contains the proposed reconstruction and is the only implementation reference named in the issue. Check its local test results and the listed WIP areas; done would require a resolved review outcome and agreement on the scope of the redesign.