(FEAT) Add simple standardized header template

[jcpunk]

Pull Request (PR) description

It seems every module has a different way of putting the This is a puppet managed file don't edit it in their templates. They are all a bit different and each one says slightly different things. This is my attempt to get something a bit more unified in place so folks can have greater consistency in their modules.

[logicminds]

I would prefer to see a native puppet function that takes all these parameters. Something like

extlib::puppet_managed(String $message = 'WARNING This file is managed by puppet. Do not edit!',
                                         String  $begin_line = '#',
                                         String  $end_line = '',
                                         Int     $line_length = 70,
                                         String  $metadata_title = 'Metadata:',
                                         Hash    $metadata = {} ) >> String {

}

# process content here and break into multiple lines

Then in the template it would be

<%= extlib::puppet_managed() %>

[logicminds]

This is complex and too many tags to understand. Would prefer to have the logic in the function.

[vox-pupuli-tasks]

Dear @jcpunk, thanks for the PR!

This is Vox Pupuli Tasks, your friendly Vox Pupuli Github Bot. I noticed that your pull request has CI failures. Can you please have a look at the failing CI jobs?
If you need any help, you can reach out to us on our IRC channel voxpupuli on Freenode or our Slack channel voxpupuli at slack.puppet.com.
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