xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
limits	4d99525703 first commit	6 月之前
equal.hpp	4d99525703 first commit	6 月之前
greater.hpp	4d99525703 first commit	6 月之前
greater_equal.hpp	4d99525703 first commit	6 月之前
less.hpp	4d99525703 first commit	6 月之前
less_equal.hpp	4d99525703 first commit	6 月之前
not_equal.hpp	4d99525703 first commit	6 月之前