xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 mesi fa
..
buffer.hpp	4d99525703 first commit	6 mesi fa
executor.hpp	4d99525703 first commit	6 mesi fa
internet.hpp	4d99525703 first commit	6 mesi fa
io_context.hpp	4d99525703 first commit	6 mesi fa
net.hpp	4d99525703 first commit	6 mesi fa
netfwd.hpp	4d99525703 first commit	6 mesi fa
socket.hpp	4d99525703 first commit	6 mesi fa
timer.hpp	4d99525703 first commit	6 mesi fa