Publish world bank datasets

[Branko-Dj]

Highly popular subject and would be great to have it on Datahub. We have around ~100 datasets that need to be packaged at https://github.com/otruja/500ds.

Tasks

• [x] Package world bank datasets
• [x] Publish datasets

[Branko-Dj]

CLOSED. The world bank datasets can be found at https://datahub.io/world-bank