1.0.3

• Add useSafeArea argument that defaults to false and pass it through to showDialog to let a zoomed-in image fill the entire screen.
• Use SizedBox.expand to make EasyImageView fill its parent instead of hard-coding its size to the full screen.
• Add example of how to use EasyImageViewPager without a dialog, embedding it in a widget and using buttons to go forward and backward.