xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
impl	4d99525703 first commit	6 月之前
channel_handler.hpp	4d99525703 first commit	6 月之前
channel_message.hpp	4d99525703 first commit	6 月之前
channel_operation.hpp	4d99525703 first commit	6 月之前
channel_payload.hpp	4d99525703 first commit	6 月之前
channel_receive_op.hpp	4d99525703 first commit	6 月之前
channel_send_functions.hpp	4d99525703 first commit	6 月之前
channel_send_op.hpp	4d99525703 first commit	6 月之前
channel_service.hpp	4d99525703 first commit	6 月之前
coro_completion_handler.hpp	4d99525703 first commit	6 月之前
coro_promise_allocator.hpp	4d99525703 first commit	6 月之前
has_signature.hpp	4d99525703 first commit	6 月之前
partial_promise.hpp	4d99525703 first commit	6 月之前