topology 24 added in JSON and also in test. This tests BatchScrapMachine

dream/simulation/JSONInputs/Topology24.json

+{"_class": "Dream.Simulation",
+ "edges": {
+   "0": [
+        "S1",
+        "DummyQ",
+        {}
+        ],
+   "1": [
+        "M1",
+        "Q1",
+        {}
+        ],
+   "2": [
+        "M2",
+        "E1",
+        {}
+        ],
+   "3": [
+        "DummyQ",
+        "M1",
+        {}
+        ],
+   "4": [
+        "Q1",
+        "M2",
+        {}
+        ]
+ },
+  "general": {
+    "_class": "Dream.Configuration",
+    "numberOfReplications": "1",
+    "maxSimTime": "1440.0",
+    "trace": "Yes",
+    "confidenceLevel": "0.95"
+  },
+  "nodes": {
+     "S1": {"_class": "Dream.BatchSource",
+      "id": "S1",
+      "name": "Raw Material",
+      "batchNumberOfUnits": 100,
+      "interarrivalTime":
+         {
+           "distributionType": "Fixed",
+           "mean": "30"
+         },
+      "entity": "Batch"
+      },
+     "M1": {"_class": "Dream.BatchScrapMachine",
+      "id": "M1",
+      "name": "Machine1",
+      "processingTime": {
+        "distributionType": "Fixed",
+        "mean": "0.25"
+        },
+      "failures":{
+        },
+      "scrapQuantity":{
+        "distributionType": "Fixed",
+        "mean": "2"
+        }
+      },
+     "M2": {"_class": "Dream.BatchScrapMachine",
+      "id": "M2",
+      "name": "Machine2",
+      "processingTime": {
+        "distributionType": "Fixed",
+        "mean": "1"
+        },
+      "failures":{
+        },
+      "scrapQuantity":{
+        "distributionType": "Fixed",
+        "mean": "2"		
+        }
+      },
+     "DummyQ": {"_class": "Dream.Queue",
+      "id": "DummyQ",
+      "name": "DummyQ",
+	  "isDummy": "1",
+	  "capacity": "1"
+      },	
+     "Q1": {"_class": "Dream.Queue",
+      "id": "Q1",
+      "name": "Q1",
+	  "isDummy": "0",
+	  "capacity": "1"
+      },	  
+     "E1": {"_class": "Dream.Exit",
+      "id": "E1",
+      "name": "Stock"
+     }
+  }
+}