make connection thread daemonic (otherwise, programs can have trouble terminating) (#24)

Co-authored-by: Ilka Schulz <schulz@ifes.uni-hannover.de>

Author: ilka-schulz

thales_remote/connection.py

@@ -304,7 +304,9 @@ def _startTelegramListener(self) -> None:
         starts the thread handling the asyncronously incoming data
         """
         self._receiving_worker_is_running = True
-        self._receiving_worker = threading.Thread(target=self._telegramListenerJob)
+        self._receiving_worker = threading.Thread(
+            target=self._telegramListenerJob, daemon=True
+        )
         self._receiving_worker.start()
         return