xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
hash_integral.hpp	4d99525703 first commit	6 月之前
hash_mix.hpp	4d99525703 first commit	6 月之前
hash_range.hpp	4d99525703 first commit	6 月之前
hash_tuple_like.hpp	4d99525703 first commit	6 月之前
limits.hpp	4d99525703 first commit	6 月之前
mulx.hpp	4d99525703 first commit	6 月之前