UI 組件：可翻轉範例

文件：

• declarative/ui-components/flipable/flipable.svg
• declarative/ui-components/flipable/qml/flipable/flipable.qml
• declarative/ui-components/flipable/qml/flipable/content/Card.qml
• declarative/ui-components/flipable/main.cpp
• declarative/ui-components/flipable/flipable.pro
• declarative/ui-components/flipable/flipable.qmlproject