Shadowsocks Windows GUI in Rust

1. build with rust-nightly
2. edit russ.json
3. put russ.exe and russ.json in the same place

1. shadowsocks-rust https://github.com/shadowsocks/shadowsocks-rust
2. native-windows-gui https://github.com/gabdube/native-windows-gui