add ability to fetch recipes like in chef-solo when using local-mode

When using local-mode sometimes good to able to fetch recipes tarball,
like chef-solo.

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
This would have to be either `shell_out!` or something like:

```
Chef::Log.debug "#{result.stdout}"
Chef::Log.debug "#{result.stderr}"
result.error! if result.error?
rescue Mixlib::ShellOut::ShellCommandFailed => e
```

Which is a bit more ugly.