xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
area.hpp	4d99525703 first commit	6 月之前
area_box.hpp	4d99525703 first commit	6 月之前
envelope.hpp	4d99525703 first commit	6 月之前
envelope_range.hpp	4d99525703 first commit	6 月之前
envelope_segment.hpp	4d99525703 first commit	6 月之前
expand_segment.hpp	4d99525703 first commit	6 月之前