Add helper script for adding instances from the census
Add 8 new instances from the census

* http://www.datos.misiones.gov.ar
* https://edx.netl.doe.gov
* http://data.bris.ac.uk/data
* http://drdsi.jrc.ec.europa.eu
* http://gong.io
* http://opendatareno.org
* http://data.gov.ie
* http://data.tainan.gov.tw