Imports of net command

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/labstack/echoPackage echo implements high performance, minimalist Go web framework.
github.com/labstack/echo/engine/standard
github.com/labstack/echo/middleware
golang.org/x/net/websocketPackage websocket implements a client and server for the WebSocket protocol as specified in RFC 6455.
logPackage log implements a simple logging package.