Rename json action to data
Add Partials for data formats
Add CSVLine View Helper
germania-sacra: add download links
germania-sacra: update map display to use data action
germania-sacra: spacing in CSV template
germania-sacra: reconfigure query fields

* do not filter by type (this is achieved by the join anyway)
* add the join to the default query
* add additional query fields without the join (to be used for export of standort-orden records)
germania-sacra: add header configuration for export formats