Worldbank - implement pagination
Newly, some series have more data then when fetcher was developed; and API pagination must be implemented in order to have all series.
Exception during downloading of 'WDI' series 'IE.PPN.ICTI.CD' (url: 'http://api.worldbank.org/v2/countries/all/indicators/IE.PPN.ICTI.CD?format=json&per_page=32700')
Traceback (most recent call last):
File "download.py", line 180, in main
download_json(url, series_path)
File "download.py", line 226, in download_json
assert pagination_infos['pages'] == 1, "Pagination is not implemented !"
AssertionError: Pagination is not implemented !