Added lots of local sources

Added local sources from:
- Pakistan
- Nigeria
- Philippines
- miscellaneous India and general Asia and Africa

This is part of the "collect now, sort out later" approach that I think we've agreed on. At some point we'll need a way of filtering between the Mongo and the coder, but that shouldn't be too difficult. This also raises questions for the future about having multiple datasets optimized for specific regions or countries, rather than one to rule them all, since there's a lot of junk that'll come in with these sources, but really valuable stuff if you're doing subnational work on any of these countries.