Import - Hospital Locations and Capacity

[pborissow]

Implement a unified import routine that does the following:

1. Loads hospital locations from DHS. Addresses will be stored in an address node. Other attributes will be stored in a hospital node.
2. Loads hospital locations and capacity data from HHS. Addresses will be stored in an address node. Hospital capacity data will be stored in a hospital_capacity node. A hospital node will be used to link the 2 together.
3. Geocode any addresses that are missing lat/lon coordinates

Reference: US Hospital Data