xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 mesi fa
..
call_std	4d99525703 first commit	6 mesi fa
cpp_future.hpp	4d99525703 first commit	6 mesi fa
detected.hpp	4d99525703 first commit	6 mesi fa
identity_tag.hpp	4d99525703 first commit	6 mesi fa
is_sax.hpp	4d99525703 first commit	6 mesi fa
std_fs.hpp	4d99525703 first commit	6 mesi fa
type_traits.hpp	4d99525703 first commit	6 mesi fa
void_t.hpp	4d99525703 first commit	6 mesi fa