xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
autodiff.hpp	4d99525703 first commit	6 月之前
autodiff_cpp11.hpp	4d99525703 first commit	6 月之前
finite_difference.hpp	4d99525703 first commit	6 月之前
lanczos_smoothing.hpp	4d99525703 first commit	6 月之前