Add the option to process a local database with a baseline model even covering multiple countries
With exposure-share we can now export exposure data for a bounding box that may even cross multiple country borders. It also allows to export the baseline model and such an extract could then be used to run the Finalizer on. For this, we need to add another command that changes the processing a bit. It will not need the country ISO code as parameter as it will process every tile. It will need to first identify all countries that the tiles cover, get their country assets and then start processing. It will make sense to assume that the buildings have been imported together with the baseline in the SpatiaLite database that the Finalizer will run on.