new modificitions for owrx_connector support

owrx/socket.py

@@ -0,0 +1,10 @@
+import socket
+
+
+def getAvailablePort():
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.bind(("", 0))
+    s.listen(1)
+    port = s.getsockname()[1]
+    s.close()
+    return port