doc: add a cli options doc page

This page is mostly a mirror of the updated manual page.

PR-URL: https://github.com/nodejs/node/pull/5787


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Robert Lindstädt <robert.lindstaedt@gmail.com>