add queries for release

[FredericBlum]

This PR adds the queries that I plan to use for the release paper. They illustrate different purposes of SQLite queries, such as sound-class matching (as initially proposed by @LinguList with some adaptations to the code), matches of sound classes of specific languages, and the querying for specific colexifications etc. The three queries from soundclass_queries are combined in oe python-script, so that a map is produced that gives an overview of the best matches with all three queries.

@LinguList Can we use the proto-list from Comrie that you provided to me in anallysis/soundclass_queries/data.txt? Should we reference this contribution by him at some place?

@xrotwang Could you check whether we can simplify some aspects of the SQLite queries? Especially the query q_extended.sql takes a lof of time to complete, probably because of the recursive CTE's. The Code for preparing everything and to run the script is given in queries.md.

@chrzyki Feel free to check anything you want, I primarily thought you might be interested in some of this.

The descriptive text in queries.md still needs to be completed with the code from word_families. I will do this in the next couple of days.

[LinguList]

@FredericBlum, should I write to Bernard today? Or we mention him in a footnote. I think it is no problem to mention it, it is also based on a talk he once gave on "Skullese" (I still don't know what he means by this).

[FredericBlum]

That would probably be good, yeah, so he can chose in what way we should refer to the data and how to credit it