Automatic selection of input files

[sebhoerl]

We're creating more and more populations with the same method. Basically, preparing the input files is always the same, and only a few are dependent on the area. And these files are easy to identify, because usually we know the regions involved (for the census and for OSM, for instance). So, theoretically, we can automate the whole process of creating a population just by providing a shape file of the area of interest.