New Airport: EDDL - Düsseldorf Airport (DUS)#242

I would like to see Düsseldorf being added as a German Airport since it is the Biggest Airport in NRW and the 4th Largest in Germany. Another reason why I would like to see it being added, is because I worked there myself with my Father and he also tested your game and liked it, so I think he would enjoy controlling the Airport he works at (aswell as me).