title: How to create UICollectionView with center cell is selected?
body: <p>I necessary to develop such object.
  UICollectionView Horizontal must center cell. And at the same center cell is marked.
  As well on the picture:</p>
  
  <p><a href="https://i.stack.imgur.com/eiJMY.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eiJMY.jpg" alt="UICollectionView centertred Cell is selected"></a></p>