Provide examples on how to generate a lot of content in the sql dump

[jokesterfr]

Huge datasets often offer unexpected errors with your code, which might be inapropriate in some cases. To better tickle your SQL requests with such heavy environment, we can consider using an extra dump (already available)... But a better option would be to rely on a generation tool, plugged to prestashop-flashlight.

A proof of concept is probably not hard to come up with, let's see who reach the challenge first ;)