Improve debugging by including an example apps that can be run from the IDE

In order to do proper debugging and improve testing, it is necessary to include examples that can be executed from within the IDE. This means implementing a Java class extending `PApplet` with a `main()` method:
`public class SketchLaunchControl extends PApplet`

This can executed from a debug session from IntelliJ, with dependencies across modules, and improve testability.