Some new patterns needed for the bio pages.

http://himedlooff.github.io/cfgov-refresh/docs/misc/#styled-link
http://himedlooff.github.io/cfgov-refresh/docs/misc/#video-poster
http://himedlooff.github.io/cfgov-refresh/docs/layout/#content-layout-column-dividers
Hmm... I see where you're coming from. We have a lot of cases to account for, though. This deserves more attention later; let's table the discussion for now and let the PR go through to get the first version of the bio pages out the door.