added arg option for force script to run

opnsense-carp-dhcp.py

@@ -28,4 +28,9 @@ def request(resource, api_key, method='GET', data=None):
         except:
             logger.debug('Request Returned Text: {}'.format(r.text))
             return {'ok': r.ok, 'status_code': r.status_code, 'response': r.text}
-    raise ValueError(r)
+    raise ValueError(r)
+
+
+parser = argparse.ArgumentParser(description='Get DHCP WAN after reboot if backup is down and update CARP and Gateway')
+parser.add_argument('-f', '--force', action='store_true', help='Force script to run, even if backup router is online')
+args = parser.parse_args()