100 Days of Swift - Project 02

I placed finished project 02 (days 19-21). I added a little changed challeange and new feature for this "Guess the Flag" app

1. added button for the next round
2. added disabling buttons feature (player can't change score for current round - buttons are disabled after each round)
3. added extension for UIView elements (settings for rounded buttons, stroke and color in Storyboard editor)
4. added extensions for UIButton (pulse, flash and shake effects for buttons)

All days You can find at: https://www.hackingwithswift.com/100