parcels: where they are

Here's a way to actually pan and zoom around the state to see what the parcels look like, where they are available, where they're not, how they match at the edge of town - that sort of thing. At the moment it only includes towns that have received parcel grants and submitted their data to the GeoLibrary, and UT towns. And it's only being used for generic viewing of geometry with some identifiers included. But it's a start.