Fix error in pipe

Changed the code: befor creating the stream to write image to the
directory is created. File now running but somhow the the directorys
and the file are not created.
Fix Downloader

Downloader is now fully funktional. Takes area as an argument and
searches all images inside of it. Then an async queue is generated
to request the images and pipe them to the files in the folder

ToDo:
 - Combine downloaded images
 - remove wite area
 - calculate meter/pixel and save to db