[openstreetmap/openstreetmap-website] Add address from the enclosing building to node information (#1901)

[SelfishSeahorse]

When querying POIs, it would be handy if the address from the enclosing building (and, if existing, from enclosing ZIP/place multipolygons) were displayed.

![untitled](https://user-images.githubusercontent.com/14875493/41456489-e645c0ba-7080-11e8-8060-0665724fe1c8.png)
![untitled2](https://user-images.githubusercontent.com/14875493/41456490-e67be546-7080-11e8-972b-b3a5b31ef386.png)


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