Juris Translator

(This is based on a previous pull request)
Translator fetches journal articles and cases (new) from Juris

I know. And I know that you saved this in the beck-online scraper.
However, the information is nice-to-have but not necessary.

Furthermore, I need the history field to save the case name (in your
example "Deus Ex", which is the official name of the case given by the
BGH itself). History can be translated to CSL using the "references" field.

Additionally, when experimenting, I found out that the attribute
"caseName" is identical with "title" (i.e. if you set "caseName" to
"Deus Ex", "title" will have the value "Deus Ex" as well. However, the
caseName and the title should be something different with case names.