Improved Levenshtein string comparison score with FuzzyWuzzy (#6, #20)

[Gustl22]

Solves #20,
and #6 partially.

• Leerzeichen bei Suche ignorieren (wenn man nacht "e110" sucht, sollte auch Raum "E 110" gefunden werden)
  Maybe not the first enty, but in the list. But always shows more relevant results.
• Auch Teil-Strings unterstützen (wenn man z.B. nur nach "101" sucht, sollte auch Raum "A 101" gefunden werden)
• Simmetrics library austauschen (z.B. gegen diese: https://github.com/Simmetrics/simmetrics)
  Simmetrics can now be removed, if wanted, but was replaced with https://github.com/xdrop/fuzzywuzzy (Note: have to create a own StringMetric interface with getSimilarity method, if removing)
• Performance verbessern
  Works quite fast, so maybe its solved, too.

Can even permut and cut words / numbers.

[Gustl22]

@dmo60 still interested in the PR? I think this would help "Ersties" a lot, if can go to university again. Best regards :)