Add named_run_list support to provisioner
Add named_run_list support to provisioner

Note that kitchen does a little bit of magic to distribute per-suite
configuration to the right place, so to use this to customize suites,
you have to explicitly name it as a provisioner customization, like:

```
suites:
  - name: default
    attributes:
  - name: other
    provisioner:
      named_run_list: example
```

chef/chef-dk,vinyar/chef-dk,chef/chef-dk,vinyar/chef-dk,tas50/chef-dk,chef/chef-dk,tas50/chef-dk,tas50/chef-dk,vinyar/chef-dk