Add snippets for Dependency Injection

Snippets/DependencyInjection/configuration.sublime-snippet

@@ -0,0 +1,31 @@
+<snippet>
+    <content><![CDATA[namespace ${1:VendorName}\\Bundle\\${2:BundleName}Bundle\\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class Configuration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        \$treeBuilder = new TreeBuilder();
+        \$rootNode = \$treeBuilder->root('${3:bundle_name}');
+
+        \$rootNode
+            ->children()
+                ->scalarNode('enabled')
+                    ->setInfo('Enable the container extension')
+                    ->setDefault(true)
+                ->end()
+            ->end()
+        ;
+
+        return \$treeBuilder;
+    }
+}
+]]></content>
+    <tabTrigger>sfdiconfiguration</tabTrigger>
+    <scope>source.php</scope>
+    <description>Symfony2 / Dependency Injection / Configuration</description>
+</snippet>

Snippets/DependencyInjection/extension.sublime-snippet

@@ -0,0 +1,25 @@
+<snippet>
+    <content><![CDATA[namespace ${1:VendorName}\\Bundle\\${2:BundleName}Bundle\\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
+use Symfony\Component\Config\FileLocator;
+
+class ${2:BundleName}Extension extends Extension
+{
+    public function load(array \$configs, ContainerBuilder \$container)
+    {
+        \$config = \$this->processConfiguration(new Configuration(), \$configs);
+        if (false === \$config['enabled']) {
+            return;
+        }
+
+        \$loader = new XmlFileLoader(\$container, new FileLocator(__DIR__.'/../Resources/config'));
+        \$loader->load('services.xml');
+    }
+}
+]]></content>
+    <tabTrigger>sfdiextension</tabTrigger>
+    <scope>source.php</scope>
+    <description>Symfony2 / Dependency Injection / Extension</description>
+</snippet>

Snippets/DependencyInjection/services.sublime-snippet

@@ -0,0 +1,15 @@
+<snippet>
+    <content><![CDATA[<?xml version="1.0" ?>
+
+<container xmlns="http://symfony.com/schema/dic/services"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <services>
+        <service id="${1:id}" class="${2:class}" />
+    </services>
+</container>
+]]></content>
+    <tabTrigger>sfdiservices</tabTrigger>
+    <description>Symfony2 / Dependency Injection / Service file</description>
+</snippet>