xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
detail	4d99525703 first commit	6 月之前
dispatch	4d99525703 first commit	6 月之前
closing_iterator.hpp	4d99525703 first commit	6 月之前
concatenate_iterator.hpp	4d99525703 first commit	6 月之前
ever_circling_iterator.hpp	4d99525703 first commit	6 月之前
flatten_iterator.hpp	4d99525703 first commit	6 月之前
point_iterator.hpp	4d99525703 first commit	6 月之前
point_reverse_iterator.hpp	4d99525703 first commit	6 月之前
segment_iterator.hpp	4d99525703 first commit	6 月之前