xhj/embeded-gateway: 网关代码

xhj 4d99525703 first commit		6 сар өмнө
..
constants.hpp	4d99525703 first commit	6 сар өмнө
pow.hpp	4d99525703 first commit	6 сар өмнө
trig.hpp	4d99525703 first commit	6 сар өмнө
trunc.hpp	4d99525703 first commit	6 сар өмнө