Add initial version of MessageSender

src/event_handlers/message_sender.py

@@ -0,0 +1,14 @@
+from server_connector import ServerUplinkConnector
+
+
+class MessageSender:
+    def __init__(self, custom_anchor=None):
+        self.server_connector = ServerUplinkConnector()
+        if isinstance(custom_anchor, str):
+            custom_anchor = custom_anchor.encode('utf-8')
+        self.anchor = custom_anchor or b'message'
+
+    def send(self, message):
+        if isinstance(message, str):
+            message = message.encode('utf-8')
+        self.server_connector.send(self.anchor, message)