Add centralised folder and initial implementations for decision system.

DecisionSystem/CentralisedDecision/ballotvoter.py

@@ -0,0 +1,21 @@
+import paho.mqtt.client as mqtt
+
+class BallotVoter:
+    def __init__(self):
+        self.client = mqtt.Client()
+        self.client.connect('172.16.43.2')
+
+    def on_connect(self, client, userdata, flags, rc):
+        print("Connected with result code " + str(rc))
+        if rc == 0:
+            global connected
+            connected = True
+
+        self.client.subscribe('swarm1/voters', qos=1)
+
+    def on_message(self, client, userdata, message):
+        
+
+    def submit_vote(self):
+        self.client.publish('swarm1/')
+