Adding app cache config option back

.env.example

 APP_ENV=local
 APP_DEBUG=true
+APP_CACHE=false
 INSTALLED=false
 APP_KEY=
 APP_URL=http://localhost

config/app.php

@@ -13,6 +13,15 @@ return [
     */
     'name' => 'My Application',
 
+    /*
+   |--------------------------------------------------------------------------
+   | Application cache
+   |--------------------------------------------------------------------------
+   | Set this to true to use the cache decorators, this will greatly improve
+   | the application speed and performance
+   */
+    'cache' => env('APP_CACHE', false),
+
     /*
     |--------------------------------------------------------------------------
     | Application Environment