Remove FileFormat codelist because it's now complete and NonEmbedded

https://github.com/IATI/IATI-Codelists-NonEmbedded/blob/master/xml/FileFormat.xml
Don't fail if no name is supplied
[IATI/IATI-Schemas#64] Rename supporting-information to exactness

And GeographicSupportingInformation.xml -> xml/GeographicExactness.xml
Update ISO country code URL
Don't assume there will always be a category-codelist
[#21] Remove partial LocationType codelist
Reorder ActivityDateType codes
[#25] Replace english based codes with numeric codes