Aj/ita office locations

Looking at this list of (I'm guessing) manually gathered industry values makes me think that something like a /meta endpoint on each of our APIs might be useful. Something like https://api.github.com/meta.

The approach here will work in the short term, but if the list changes (which is to be expected), the list here will become out of date.

Then again, this will also tie into our upcoming industry_mapper work, and maybe a solution to this will fall out of that work.

@ErikSArnold FYI