`pkg install` has a `-A, --automatic` option, but how to effect the opposite? I have a bunch of library packages that just got dragged in as I installed others. But now I'm building some code by hand that uses those libraries, so I want the containing packages to be "really" or "manually" installed, and protected from `pkg autoremove`. I don't see any such option for `pkg install`, and I don't immediately see how to achieve this in a different way, either.
