title: UicollectionViewCell on cell select change Border colour
body: <p>I have a custom <code>UICollectionVIewCell</code>. When the user selects a cell I want the border of the cell to be Red in color and when the user de-selects it I want to clear-color the border of the cell. </p>
  
  <p>How is this possible?</p>
  
  <pre><code>-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
  
      CustomeCollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
  
      cell.backgroundColor=[UIColor redColor];
  
  }
  
  -(void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
  
      CustomeCollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
  
      cell.backgroundColor=[UIColor clearColor];
  
  }
  </code></pre>