Adds utilities, persistance, and period sends of Watchdog

{{cookiecutter.driver_name}}/python-driver/utilities.py

@@ -0,0 +1,11 @@
+"""Utility functions for the driver."""
+import socket
+
+
+def get_public_ip_address():
+    """Find the public IP Address of the host device."""
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    s.connect(("8.8.8.8", 80))
+    ip = s.getsockname()[0]
+    s.close()
+    return ip