xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
count_impl.hpp	4d99525703 first commit	6 月之前
insert_impl.hpp	4d99525703 first commit	6 月之前
item.hpp	4d99525703 first commit	6 月之前
multiset0.hpp	4d99525703 first commit	6 月之前
tag.hpp	4d99525703 first commit	6 月之前