title: Getting Columns in UICollectionView
body: <p>How can I add column headers on top of my uicollectionview for each column?</p>
  
  <p>I've been trying all sorts of things for days and had horrible luck :(
  I'm just using a regular uicollectionview and have 20 or so items in it.
  I don't need the header to stay floating or anything sophisticated, just need a single label of text above the first row in each column.
  Any ideas?</p>