Split zones across multiple named.conf file

[deligatedgeek]

The change is for spreading zones across multiple name.conf.x as well as the main named.conf file.
Added nameconfpath to zone.pp's class parameters, allowing it to be passed within zone data.
I used a reduce function to move the named.conf filename into the zone data, so the hiera data is shorter and cleaner.
I don't think this affects normal functionality.

dns::additional_zones:
  'named.conf.other':
    'adomain.org':
      'manage_file': false
      'manage_file_name': true
    'anotherdomian.com':
      'manage_file': false
      'manage_file_name': true
  'named.conf.more':
    'smoother.domain':
      'manage_file': false
      'manage_file_name': true