Add CONNECT handler

hbmqtt/handlers/__init__.py

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+__author__ = 'nico'

hbmqtt/handlers/connect.py

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+# Copyright (c) 2015 Nicolas JOUANIN
+#
+# See the file license.txt for copying permission.
+
+from hbmqtt.message import MQTTMessage, ConnectMessage
+
+class ConnectHandle:
+    @staticmethod
+    def handle(message:ConnectMessage) -> MQTTMessage: