Added first ControlCore code

.gitignore

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+__pycache__/*

Messages.py

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+from controlcore_python.Participant import Participant
+
+class IMessage:
+    def SendMsg(client: Participant, msg):
+        bufferSize =msg.Serialize(client.buffer)
+        return client.SendBuffer(bufferSize)
+
+    def Serialize(buffer):
+        return 0
+
+class NetworkIdMsg(IMessage):
+    id = 0xA1
+    length = 2
+
+    def __init__(self, networkId):
+        self.networkId = networkId
+
+    def Serialize(self, buffer):
+        ix = 0
+        buffer[ix] = NetworkIdMsg.id
+        ix+=1
+        buffer[ix] = self.networkId
+        ix+=1
+        return ix
+
+    @staticmethod
+    def Send(participant: Participant, networkId):
+        msg = NetworkIdMsg(networkId)
+        return IMessage.SendMsg(participant, msg)
+
+class ModelUrlMsg(IMessage):
+    id = 0x90
+    
+    def __init__(self, networkId, thingId, url):
+        self.networkId = networkId
+        self.thingId = thingId
+        self.url = url
+    
+    def Serialize(self, buffer):
+        ix = 0
+        buffer[ix] = ModelUrlMsg.id
+        ix+=1
+        buffer[ix] = self.networkId
+        ix+=1
+        buffer[ix] = self.thingId
+        ix+=1
+        buffer[ix] = 0x3D # Dummy float16 value 1
+        ix+=1
+        buffer[ix] = 0x00
+        ix+=1
+        buffer[ix] = len(self.url)
+        ix+=1
+        for c in self.url:
+            buffer[ix] = ord(c)
+            ix+=1
+        return ix
+    
+    @staticmethod
+    def Send(participant, networkId, thingId, modelUrl):
+        msg = ModelUrlMsg(networkId, thingId, modelUrl)
+        return IMessage.SendMsg(participant, msg)

Participant.py

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+import socket
+
+class Participant:
+    def __init__(self, ipAddress, port):
+        self.buffer = bytearray(256)
+        self.ipAddress = ipAddress
+        self.port = port
+        self.udpSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+        self.udpSocket.bind(("0.0.0.0", 7681))
+    
+    def SendBuffer(self, bufferSize):
+        if self.ipAddress is None:
+            return False
+        
+        if bufferSize <= 0:
+            return True
+        
+        self.udpSocket.sendto(self.buffer[:bufferSize], (self.ipAddress, self.port))
+        return True