Group08: Cleand data and part of the HandsOn Assignment 4.

- Clean SF_311 data with a new resource naming strategy.
- Clean SF_Private_School, SF_Public_School & SF_Public_Buildings.
- Part of the HandsOn Assignment 4. We are having some problems finding proper endpoints and data sources for the data we want to link (mainly Geonames) so we are late with this assignment.