Patterns exclude lang predicates

[niklas88]

@floriankramer this is my (untested since scientists has no literals) version of ignoring the @lang@<predicate> predicates. It also includes some small clean ups, so maybe we can figure out what to take from which version.

[floriankramer]

I'd try merging your version into mine. That way I could include your cleanups and the functional way of finding the upper and lower bound of the @..@ prefixes while avoiding having to do a rebase for the CreatePatternsMain executable which creates patterns for an existing index, that I just wrote and added to my pr.

[niklas88]

@floriankramer I think there will be too many conflicts for direct merging, even with git cherry-pick <hash> but I'm not sure. I'm currently trying to test this on wikidata-small. As the new TODO indicates I'm not totally happy with my current version anyway.

[niklas88]

@floriankramer ok I think my version doesn't really work on wikidata-small, for

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wikibase: <http://wikiba.se/ontology#>
    
SELECT ?pred (COUNT(?pred) AS ?count) WHERE {
  ?human wdt:P31 wd:Q5 .
  ?human ?pred ?obj .
}
ORDER BY DESC(?count)
GROUP BY ?pred

I get results but not for the ql:has-predicate variant.

[niklas88]

This has been merged with Florian's PR for the same idea getting the best of both