structure change: pgn

+ Added some additional meta data keys.
* Moved the regex strings from the converter to the PGNVocabulary. (Also
the group coment.)
Added public prefixes.

+ Added possible prefix names for public URIs.
* Changed static prefix strings and added reference to rdf vocabulary
COUNT SPARQL Query String

+ Added the possibility to create a COUNT SPARQL Query for counting the
result set.
* Made the Setter methods chainable.
OutputChange, Triplecount

* Modified Log-Writing to use format-Strings.
* Added triple count in logs.
+ Added getter methods for the graph and triple count
Merge remote-tracking branch 'origin/master-Querela'