plugin to invoke data extraction added. Dummy still

dream/plugins/CapacityStationsKE.py

+from copy import copy, deepcopy
+import json
+import time
+import random
+import operator
+import datetime
+
+from dream.plugins import plugin
+
+class CapacityStationsKE(plugin.InputPreparationPlugin):
+    """ Input preparation 
+        creates the CapacityStationBuffer and CapacityStationExit for each CapacityStation
+    """
+
+    def preprocess(self, data):
+        from dream.KnowledgeExtraction.PilotCases.CapacityStations.DataExtraction import DataExtraction
+        DBFilePath=data['general']['ke_url']
+        extractedData=DataExtraction(DBFilePath)
+        return data
+
+    
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