Integrate OpencogAgent into the pong example

[ngeiswei]

We have a pong example with a dummy agent

https://github.com/opencog/rocca/blob/master/examples/pong.py

it would interesting to integrate the opencog agent, this could be especially interesting to study delayed reward as the agent needs to plan its actions (moving the paddle) long before missing the ball.

To integrate the opencog agent into the pong example one may take example on the chase example

https://github.com/opencog/rocca/blob/master/examples/chase.py

[github-actions]

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