JavaDocs: replace JavaFX script example code with Java code

The following scene graph classes have older JavaFX Script example code that needs to be ported to Java:

docs/api/javafx/scene/paint/Color.html
docs/api/javafx/scene/transform/Rotate.html
docs/api/javafx/scene/transform/Shear.html
docs/api/javafx/scene/transform/Transform.html
docs/api/javafx/stage/Screen.html