Fix creation of new entries

[raphink]

4a9d55a introduced a new tree for the lens, which types every setting.

The manifests were fixed accordingly, but non-existing entries can not be created anymore.

For example, when passing:

puppetserver::config::helper { 'webserver/port':
      setting => 'webserver.conf/@hash[.="webserver"]/@simple[.="port"]',
      type    => 'puppetserver',
}

it will fail if there is no entry for port yet.

The solution is to create each level with Augeas, e.g. in this case:

$changes = [
  'set webserver.conf/@hash[.="webserver"] "webserver"',
  'set webserver.conf/@hash[.="webserver"]/@simple[.="port"] "port"',
  "set webserver.conf/@hash[.="webserver"]/@simple[.="port"]/@value '#{value}'",
]

And if we're going to do that, we might as well revert to the old interface, and add a type parameter.

[raphink]

So now we have a puppetserver_config type and provider, we "just" need to wire it properly to the manifests so that it works in a transparent way :-)

[raphink]

Fixed in 2.0.0