Features
- socket: add support set
SO_BROADCAST(Jianhui Zhao) - hash: add support sha256 (Jianhui Zhao)
- hash: add support hmac (Jianhui Zhao)
- sys: Add a method
shto run shell cmd simply (Jianhui Zhao) - bump version 3.7.0 (Jianhui Zhao)
SO_BROADCAST (Jianhui Zhao)sh to run shell cmd simply (Jianhui Zhao)