Add API endpoints for allowing users to manage places they are interested in receiving alerts for

[aub]

The resident needs to be able to specify any number of places that they would like to monitor, and they need to be able to edit and delete these places as well. We will need:

1. An endpoint that accepts a name, lat/lon, and address and creates a new place for monitoring. The place should be attached to the resident's account, and the endpoint should return a JSON document representing the place including its id.
2. An endpoint that returns all of the places attached to a resident's account.
3. An endpoint that allows deletion of a place by id.
4. An endpoint that allows changing the place by id, by providing a new name, lat/lon, and/or address.