Wahlstedt Airfield EDHW

This scenery improves the airfield Wahlstedt EDHW mainly used for ultra-light aviation and soaring.  I replaced the auto generated guildings with more appropriate generic guildings, however still no custom modelling.I also added some planes, cars and trailers to make the scenery more alive and fixed some vegetation. The most important addition is the windsock and gable markers on the fields edges.I had not taken any special material and restored all assets from pictures on the web and my memory. If this scenery gets popular I might improve it and add gustom models.