xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 月之前
..
kmeans	4d99525703 first commit	6 月之前
linear	4d99525703 first commit	6 月之前
node	4d99525703 first commit	6 月之前
quadratic	4d99525703 first commit	6 月之前
rstar	4d99525703 first commit	6 月之前
utilities	4d99525703 first commit	6 月之前
visitors	4d99525703 first commit	6 月之前
adaptors.hpp	4d99525703 first commit	6 月之前
iterators.hpp	4d99525703 first commit	6 月之前
options.hpp	4d99525703 first commit	6 月之前
pack_create.hpp	4d99525703 first commit	6 月之前
query_iterators.hpp	4d99525703 first commit	6 月之前