move test data generation to sampledataset class and add test case
Merge branch 'master' of https://github.com/plt-tud/r43ples.git

Conflicts:
	src/de/tud/plt/r43ples/develop/examples/CreateExampleGraph.java
	src/de/tud/plt/r43ples/develop/examples/CreateExampleGraphClasses.java
	src/de/tud/plt/r43ples/develop/sparql/SparqlQueryTests.java
Merge branch 'master' of https://github.com/plt-tud/r43ples.git