Analyse ÖAK and Media Analyse data

[AnotherCodeArtist]

To add some extra value to the system media data can be enriched with data that is provided by the Österreichische Auflagenkontrolle and/or Media Analyse.
It needs to checked whether the data is relevant (e.g. to which extend does it cover the media that is part of Mehr!Medientransparenz) and also whether data format and data quality is suited for automatic import into the system.