xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
detail	4d99525703 first commit	6 月之前
impl	4d99525703 first commit	6 月之前
cmd.hpp	4d99525703 first commit	6 月之前
cwd.hpp	4d99525703 first commit	6 月之前
env.hpp	4d99525703 first commit	6 月之前
exe.hpp	4d99525703 first commit	6 月之前