Quality: use dependency injection for supplying the AI_Interface to each module

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At the moment the Module abstract class creates an AI_Interface on initialization. With three different module, three AI_Interface instances will be created. This is unnecessary as there are no special configurations per module for the AI_Interface; they should all use the same instance. Instead this instance should be initialized before creating all module instances and pass it as a parameter when creating those module instances. This will not only reduce the memory usage (no three instances of the same class) as well as all other benefits dependency injection provides.

Start with the Module abstract class and trace the entry point that creates all module instances. Check where AI_Interface is initialized and how it is passed through module construction. Done means the modules use one shared AI_Interface instance rather than creating one per module.

Written by the indexing model from the issue text.