Relocate Street Lights to "Landscaping"

[Zaperia]

Street lights take up building slots for 'too many buildings' morale debuffs. To really use them to make a city look nice you need quite a few. They also take up a lot of room in the 'building list' window which is a chunk to scroll through when I am managing the buildings.

So I think it would be a good idea to relocate street lights under landscaping so we do not have to worry about their abundance causing mass depression within the city when they go over the building limit.  :D