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

[haschdl]

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.