xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		11 月之前
..
msvc	4d99525703 first commit	11 月之前
std	4d99525703 first commit	11 月之前
constant.hpp	4d99525703 first commit	11 月之前
decltype.hpp	4d99525703 first commit	11 月之前
incr_registration_group.hpp	4d99525703 first commit	11 月之前
typeof.hpp	4d99525703 first commit	11 月之前