Added Footer Partial Support

This commit includes the footer.html partial file in the template so
that it can be overridden to include content at the base of each page
such as copyright notice, bottom menu, etc.

layouts/_default/list.html

@@ -19,6 +19,7 @@
       {{ if $paginator.HasNext }}<a href="{{ $paginator.Next.URL }}" class="pagination-older">Older Posts &gt;</a>{{ end }}
     </nav>
     {{ end -}}
+    {{ partial "footer.html" . }}
     {{ partial "scripts.html" . }}
   </body>
 </html>

layouts/_default/single.html

@@ -28,6 +28,7 @@
       {{ end }}
       {{ partial "home-card.html" . }}
     </nav>
+    {{ partial "footer.html" . }}
     {{ partial "scripts.html" . }}
   </body>
 </html>