Merge switch configurations that yield with the same effective wiring

for "Analyze Guitar Wirings" module, for more compact report

diylc/diylc-core/src/org/diylc/netlist/Summary.java

@@ -21,8 +21,7 @@
 */
 package org.diylc.netlist;
 
-
-public class Summary {
+public class Summary implements Comparable<Summary> {
 
   private Netlist netlist;
   private String summary;
@@ -36,6 +35,10 @@ public class Summary {
   public Netlist getNetlist() {
     return netlist;
   }
+  
+  public void append(Netlist netlist) {
+    this.netlist.getSwitchSetup().addAll(netlist.getSwitchSetup());
+  }
 
   public String getSummary() {
     return summary;
@@ -76,4 +79,9 @@ public class Summary {
   public String toString() {   
     return summary.toString();
   }
+
+  @Override
+  public int compareTo(Summary o) {
+    return netlist.compareTo(o.netlist);
+  }
 }