drawio/etc/propgen

Converts from .tsv files (downloaded from eg. Google Spreadsheet) to .txt resource files.

The resources for draw.io are here:
https://docs.google.com/spreadsheet/ccc?key=0AmQEO36liL4FdDJLWVNMaVV2UmRKSnpXU09MYkdGbEE#gid=0