(PDOC-17) Changed header and remove sub-header

Prior to this commit there was a header and a sub-header for
defined types and classes. This was a little redundant so rather
than doing that, remove the sub-header and make the main header
more readable.

lib/puppetx/puppetlabs/strings/yard/templates/default/definedtype/html/docstring.erb

@@ -1,4 +1,3 @@
-<h3 class="signature first"> Class: <%= @class_details[:name] %></h3>
 <div class="docstring">
   <div class="discussion">
     <p><%= @class_details[:desc] %></p>

lib/puppetx/puppetlabs/strings/yard/templates/default/definedtype/html/header.erb

@@ -0,0 +1,5 @@
+<div class='module_header'>
+  <h1>
+    <%= @header_text %>
+  </h1>
+</div>

lib/puppetx/puppetlabs/strings/yard/templates/default/definedtype/setup.rb

@@ -17,6 +17,18 @@ def parameter_details
   erb(:parameter_details)
 end
 
+def header
+  if object.type == :hostclass
+    @header_text = "Puppet Class: #{object.name}"
+  elsif object.type == :definedtype
+    @header_text = "Puppet Defined Type: #{object.name}"
+  else
+    @header_text = "#{object.name}"
+  end
+
+  erb(:header)
+end
+
 def docstring
   examples = Hash.new
   example_tags = object.tags.find_all { |tag| tag.tag_name == "example" }