Adding Guenther-2022-30 from Concepticon

[MiraAhmedovic]

Adding Guenther-2022-30 from Concepticon, based on Language statistics as a window into mental representations by Günther & Rinaldi (2022).
This list is big in the sense that there's a lot of variables:

• it contains 30 languages and for each of them plural forms, their frequency and logarithmic frequency in the source material.
• Additionally, brain and body area values are given as uni- and bilateral variables, for anterior and anterior-posterior surface and for two definitions of the body-part "arm", respectively.

In references.bib, there's only one page listed for Mosteller1987 instead of a page range. I could not access the original work to check, but various sources only list one page or a range only spanning one page for this source. In the original New England Journal of Medicine, it is also listed as only taking up one page, so I assume it is more like a (mathematical) diagram rather than an article in the classical sense.

This PR also changed faulty RATING values in norare.tsv for two FREQUENCY variables in Binder-2016-AffectiveRatings.