主要学习的内容：
- 自定义Transition动画
- 实现Percent Driven Interactive Transition
开发环境：
- macOS 10.12
- Xcode 8.2
- iOS 10.2
- Swift 3.0
参考：
- Change border color of a UITableViewCell on selection
- Custom UINavigationController transition animations with Swift
- Creating Custom UIViewController Transitions
- Difference between UIViewContentModeScaleAspectFit and UIViewContentModeScaleToFill?
源代码：