Map and Geolocation

New Features

• Added a map component, which can be instanced with a marker at a given set of geo coordinates
• Added a Service class to convert postal codes and street addresses to geo locations. This service is wired up to the Post Creation View.
• All posts now store their postal code, and geo location.

Removals / Changes

• Removed the "search by distance" features. The hard coded in values were causing issues in lower levels of the application. We can re-add these features once we add in distancing features properly.