Include "county" in result set

[newswim]

As we start expanding to more counties, things like Case Number are not actually unique across counties. Concretely, you might see case number ABC-123 in two different counties, but they refer to completely different cases.

[tpadmanabhan]

Low priority

[tpadmanabhan]

@newswim Dan, can you get @nicolassaw access to the dataset referenced here?

[tpadmanabhan]

this may also be necessary in the filename if we aren't already doing this
if it's already in filename and in the json itself, this can be set to done imo

[tpadmanabhan]

@nicolassaw can confirm this by looking at the cosmos db data