xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
detail	4d99525703 first commit	6 月之前
apply_visitor.hpp	4d99525703 first commit	6 月之前
bad_visit.hpp	4d99525703 first commit	6 月之前
get.hpp	4d99525703 first commit	6 月之前
multivisitors.hpp	4d99525703 first commit	6 月之前
polymorphic_get.hpp	4d99525703 first commit	6 月之前
recursive_variant.hpp	4d99525703 first commit	6 月之前
recursive_wrapper.hpp	4d99525703 first commit	6 月之前
recursive_wrapper_fwd.hpp	4d99525703 first commit	6 月之前
static_visitor.hpp	4d99525703 first commit	6 月之前
variant.hpp	4d99525703 first commit	6 月之前
variant_fwd.hpp	4d99525703 first commit	6 月之前
visitor_ptr.hpp	4d99525703 first commit	6 月之前