(#11273) Updates init.pp.erb for style guide.
This patch introduces a more thorough init.pp template that outlines what parameters and variables are, a spot for Author, and Copyright; to be used when a new module skeleton is generated using the puppet module face. Content is based on recommended puppet doc format, suggested by the official style guide. Plus a few fix ups in syntax. In testing this template I found errors in our style guide and will be pushing a branch to fix that recommendation too.