Use correct namespace for models accordingly to the package config

[DenTray]

In AbstractTestGenerator need to change the getModelClass logic. Instead of hardcoded App\Models namespace should be generated accordingly package config paths.models transformed to PSR4 standard.

After implementation, namespace binding in composer ("App\Models": "tests/Support/Models") should be removed and related test cases should modify path in config instead.

[pirs1337]

done

[DenTray]

@pirs1337 I've modify my local config

and try to generate new entity

could you please check it?