Projects: show teams that have access to a project

[agjohnson]

Probably in the project detail view header, show the teams that have access to the project. This might need to be a dropdown to save on some space, especially as this can be many to many and organizations can have arbitrary number of teams.

First, check on the number of organizations that have more the a few teams, it likely skews towards one or two teams I'm sure. If so, it should be easy to work the list of teams into the project header, otherwise putting these in a dropdown would probably work best. Very alternatively, a popupcard might work well here too, the UI and UX is very similar to projects/builds/etc, even though we don't expose an object for this relationship directly.

[agjohnson]

I also suggested in #234 that this is how we could repurpose the admin view on maintainers. This is an admin only action though, so I don't know if we need more of a list here or not. I'm going to push this out to a bit later though, as we don't really have this currently anyways.