xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		vor 6 Monaten
..
fixed_c.hpp	4d99525703 first commit	vor 6 Monaten
is_even.hpp	4d99525703 first commit	vor 6 Monaten
rational_c.hpp	4d99525703 first commit	vor 6 Monaten