MAGETWO-32642: Move Magento\Core\Model\TemplateEngine\Plugin\DebugHints.php to the Magento_Developer module

- Add initial skeleton of Magento\Developer module

Author: Bryant Luk

app/code/Magento/Developer/README.md

@@ -0,0 +1 @@
+The Magento_Developer module provides functionality to make it easier to develop in Magento 2.

app/code/Magento/Developer/composer.json

@@ -0,0 +1,23 @@
+{
+    "name": "magento/module-developer",
+    "description": "N/A",
+    "require": {
+        "php": "~5.4.11|~5.5.0|~5.6.0",
+        "magento/framework": "0.42.0-beta3",
+        "magento/magento-composer-installer": "*"
+    },
+    "type": "magento2-module",
+    "version": "0.42.0-beta3",
+    "license": [
+        "OSL-3.0",
+        "AFL-3.0"
+    ],
+    "extra": {
+        "map": [
+            [
+                "*",
+                "Magento/Developer"
+            ]
+        ]
+    }
+}

app/code/Magento/Developer/etc/module.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
+    <module name="Magento_Developer" schema_version="2.0.0">
+    </module>
+</config>