Add wards + ability to click to see routes in ward

[amy-corson]

Adds a ward map, additional filters, and clicking on a ward will pull up all routes that touch that ward.

Also removed a few data files that are not in use.

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[smacmullan]

I believe the opacity issue has to do with incorrect implementation of react-leaflet. I'm starting a new branch to refactor the map components. Each route and boundary is getting its own key now, but we need to update the code to deal with props and state.

[amy-corson]

blocked by #60

[lauriemerrell]

Closing as stale, can revisit if someone wants to take this on another time