Make a CLI interface and optional GUI compilation

[nicopace]

That way this could come embedded into OpenWRT/LEDE Routers

[drkno]

@nicopace this version of name-bench has been essentially dead for quite a while, check out the forks if you want further development. The original namebench had a CLI interface (use the -x option) and is able to run on one of my LEDE Archer C7 routers.

[nicopace]

what a pitty... implementing it in go instead of python would make it much more compact and distributable on smaller devices :)