[dictionaries] General improvements to Norwegian dictionaries

[Bjoern-Rapp]

Improved the dictionaries for Norwegian street name, street type and post office.
This are the most common "street types" and landforms used in Norwegian street names, that I can find.

I could try to expand the concatenated_suffixes_inseparable.txt and the concatenated_suffixes_separable.txt dictionaries to, but I don't quite understand when a word is supposed to be in one list versus the other.

[albarrentine]

concatenated_suffixes_separable.txt is something like straße/strasse in German, where it may appear concatenated to the string or may appear separated by a space or hyphen. For instance, we'd like that:

• "Lange Strasse"
• "Lange-Strasse"
• "Langestrasse"
• "Langestr."
• "Lange Str."
• "Lange-Str."

should all share an expansion in common.

concatenated_suffixes_separable.txt tends to be more for endings of place names like "burg", which may sometimes appear as "bg." but wouldn't be separated from the city name the way a street ending could.

Some had no abbreviation but for the language classifier it is easier to get wrong answers with the 4-gram model in languages like German, Dutch, Danish, Norwegian, and Swedish which have many character sequences in common, so having a few more suffixes, etc. in those dictionaries tended to help even if they're not abbreviations.

[Bjoern-Rapp]

The reason that I am unsure, is that in Norwegian nouns can take a indefinite and a definite inflection, and the definiteness decides if the street ending can be separated from the core.
So, as in the example above, "upper street" could be written as:

• Øvre gate (indefinite)
• Øvregata (definite)

but not as "Øvre gata".