kngclick: add FIXME to half-assed licensing explanation

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
output: begin click-based verbosity framework

Most of the code in output is junk.

Here are the beginnings of the real deal.

Also re-orders decorator nesting in kngcommandcommon as
the old order was incorrect and causing side-effects.

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>