add support for an HMD script debug log window

scripts/developer/debugging/debugWindow.js

@@ -0,0 +1,25 @@
+//
+//  debugWindow.js
+//
+//  Brad Hefta-Gaub, created on 12/19/2016.
+//  Copyright 2016 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+
+// Set up the qml ui
+var qml = Script.resolvePath('debugWindow.qml');
+var window = new OverlayWindow({
+    title: 'Debug Window',
+    source: qml,
+    width: 400, height: 900,
+});
+window.setPosition(25, 50);
+window.closed.connect(function() { Script.stop(); });
+
+// Demonstrate sending a message to the QML window
+ScriptDiscoveryService.printedMessage.connect(function(message, scriptFileName) {
+    window.sendToQml("[" + scriptFileName + "] " + message);
+});

scripts/developer/debugging/debugWindow.qml

@@ -0,0 +1,35 @@
+//
+//  InfoView.qml
+//
+//  Created by Bradley Austin Davis on 27 Apr 2015
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+import QtQuick 2.5
+import QtQuick.Controls 1.4
+import Hifi 1.0 as Hifi
+
+
+Rectangle {
+    id: root
+    width: parent ? parent.width : 100
+    height: parent ? parent.height : 100
+
+    property var channel;
+
+    TextArea {
+        id: textArea
+        width: parent.width
+        height: parent.height
+        text:""
+    }
+
+    function fromScript(message) {
+        textArea.text += message + "\n";
+    }
+}
+
+