Creates a BaseVerticalCollectionView with all default properties. The BaseVerticalCollectionView.itemsSource must all be set for the BaseVerticalCollectionView to function properly.
| itemsSource | The list of items to use as a data source. | 
| itemHeight | The height of each item, in pixels. For <c>FixedHeight</c> virtualization only. | 
Constructs a BaseVerticalCollectionView, with all required properties provided.