`width` & `height` are not accessible as globals across imported Python modules in the same directory

Unlike in Processing tabs that exist in the same folder, different Python modules in the same directory does not share width and height information. width and height have to be imported to the Class constructor for now as a workaround.

Example:
noc-2-mewnala-port > chapter2 > Example_2_6_Attraction

• width and height are declared in Example_2_6_Attraction.py setup
• Attractor.py and Mover.py are also trying to access width and height
  Note that there is no error anyway if we try to run the sketch without providing width and height to the Classes, but it isn't exposed to modules outside the one that has size(width, height) in the setup

Reproduce el comportamiento en noc-2-mewnala-port/chapter2/Example_2_6_Attraction, donde setup define width y height, mientras que Attractor.py y Mover.py acceden a ellos. Empieza rastreando cómo los módulos del mismo directorio reciben el estado de Processing; el trabajo estará terminado cuando esos módulos puedan acceder a width y height sin pasárselos a los constructores de sus clases.