Handle software version requests for gateways that return from domainpart

tests/functionaltests/test_software.h

@@ -1,4 +1,5 @@
 void send_software_version_request(void **state);
 void display_software_version_result(void **state);
 void shows_message_when_software_version_error(void **state);
+void display_software_version_result_when_from_domainpart(void **state);