Added constructors

src/main/java/kieker/analysis/util/graph/export/dot/DotFileWriterStage.java

@@ -11,17 +11,25 @@ import kieker.analysis.util.graph.util.FileExtension;
 public class DotFileWriterStage extends DotWriterStage {
 
 	public DotFileWriterStage(final Function<Graph, String> fileNameMapper) {
+		this(fileNameMapper, new SimpleDotExportConfiguration());
+	}
+
+	public DotFileWriterStage(final Function<Graph, String> fileNameMapper, final DotExportConfiguration exportConfiguration) {
 		super(fileNameMapper.andThen(fileName -> {
 			try {
 				return new FileWriter(fileName);
 			} catch (IOException e) {
 				throw new IllegalArgumentException(e);
 			}
-		}));
+		}), exportConfiguration);
 	}
 
 	public DotFileWriterStage(final String outputDirectory) {
-		this(new SimpleFileNameMapper(outputDirectory, FileExtension.DOT));
+		this(outputDirectory, new SimpleDotExportConfiguration());
+	}
+
+	public DotFileWriterStage(final String outputDirectory, final DotExportConfiguration exportConfiguration) {
+		this(new SimpleFileNameMapper(outputDirectory, FileExtension.DOT), exportConfiguration);
 	}
 
 }