Add ASLs and crossings.

via StreetComplete 29.1

Attached photo(s):
https://westnordost.de/p/27459.jpg
https://westnordost.de/p/27460.jpg
https://westnordost.de/p/27461.jpg
https://westnordost.de/p/27462.jpg
https://westnordost.de/p/27463.jpg