Create road signs and building numbers

[plexsoup]

Once the player has some quests, they'll have no way to navigate.

Two possible solutions:

1. give them a waypoint or visible path to location (boring)
2. make a city map complete with street names, add street signs to the city, add street numbers to the buildings.

With option 2, quest item can say "Talk to Sally at 1370 Main St.", and the player would have everything they need to find that.

[plexsoup]

I stuck the street signs directly on the ground. Good enough for now.