Added Vagrant configuration cookbook

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes
| Applies to    | all
| Fixed tickets | n/a

A new cookbook article was added with an example Vagrant configuration that can be used with the Symfony Standard Edition.
I also think NFS should be enabled by default. Since windows don't support NFS, it will be ignored. As described in [NFS - Synced Folders](https://docs.vagrantup.com/v2/synced-folders/nfs.html)

> Windows users: NFS folders do not work on Windows hosts. Vagrant will ignore your request for NFS synced folders on Windows.