Implemented storing graphs in memory for multiple pairing experiments

src/main/java/MatchingFileWriter.java

@@ -11,7 +11,6 @@ import java.util.List;
 public class MatchingFileWriter {
 
     private String filename;
-    private String sourceFileName;
     private List<String> comments;
     private List<String> headers;
     private List<List<String>> allResults;
@@ -21,7 +20,6 @@ public class MatchingFileWriter {
             filename = filename + ".csv";
         }
         this.filename = filename;
-        this.sourceFileName = result.getSourceFileName();
         this.comments = result.getComments();
         this.headers = result.getHeaders();
         this.allResults = result.getAllResults();