implement conversational awareness in tray app

aln/Notifications/ConversationalAwareness.py

@@ -0,0 +1,19 @@
+# 04 00 04 00 4b 00 02 00 01 [01/02/03/0b/09]
+
+from ..enums import enums
+
+class ConversationalAwarenessNotification:
+    NOTIFICATION_PREFIX = enums.CONVERSATION_AWARENESS_RECEIVE_PREFIX
+    
+    def __init__(self):
+        pass
+    
+    def isConversationalAwarenessData(self, data: bytes):
+        if len(data) != 10:
+            return False
+        if data.hex().startswith(self.NOTIFICATION_PREFIX.hex()):
+            return True
+    
+    def setData(self, data: bytes):
+        self.status = data[9]
+        pass