Rearrange existing files
Add column 'name_en' with some entries
Add table from the CITAS project:

http://sedac.ciesin.columbia.edu/data/set/cddc-china-guobiao-codes-admin-divisions
Add a table with some supplementary data

These are codes that are included in the published standard, appear on the
NBS website, but were not included in the earlier version of the repository.
Most are '市辖区' ("city area").
Add processing script and its output