Implement test version of showing cloud connected printers in list

resources/qml/Menus/CloudPrinterMenu.qml

@@ -0,0 +1,26 @@
+// Copyright (c) 2018 Ultimaker B.V.
+// Cura is released under the terms of the LGPLv3 or higher.
+import QtQuick 2.2
+import QtQuick.Controls 1.4
+
+import UM 1.2 as UM
+import Cura 1.0 as Cura
+
+Instantiator {
+
+    model: UM.ContainerStacksModel {
+        filter: {"type": "machine", "um_cloud_cluster_id": "*", "hidden": "False"}
+    }
+
+    MenuItem {
+        // iconSource: UM.Theme.getIcon("printer_single") TODO: use cloud icon here
+        text: model.name
+        checkable: true
+        checked: true // cloud printers are only listed if they are actually online
+        exclusiveGroup: group;
+        onTriggered: Cura.MachineManager.setActiveMachine(model.id);
+    }
+
+    onObjectAdded: menu.insertItem(index, object)
+    onObjectRemoved: menu.removeItem(object)
+}