T001 create base bundle structure

Shop\CommonBundle with AbstractController created
Shop\WebSiteBundle with IndexController created 
http://symfony.com/doc/current/book/routing.html#including-external-routing-resources

Please look at the last part of this block - i think it's more clear - to describe and configure  all routes in `YOUR_BUNDLE/Resources/config/routing.yml` and then just include this configuration file to `app/config/routing.yml`