Is your feature request related to a problem? Please describe.

In OpenNARS 3.0.4 and ONA, there are some simple demos. A common one is Pong Game. This is a proper demo which should be implemented in PyNARS as well.

Describe the solution you'd like

A video can be found here https://www.youtube.com/watch?v=3byoTPxVZJA .
A detialed description can be found here https://github.com/opennars/opennars/wiki/Pong-Game.