Zwave: Add forgotten service file (#6073)

* add print

* Add 'print_node' service to zwave.

* Add forgotten service file

homeassistant/components/zwave/services.yaml

@@ -47,6 +47,12 @@ print_config_parameter:
     parameter:
       description: Parameter number to print (integer).
 
+print_node:
+  description: Print all information about z-wave node.
+  fields:
+    node_id:
+      description: Node id of the device to print.
+
 set_wakeup:
   description: Sets wake-up interval of a node.
   fields: