Updating Google Analytics header

In order to give access to all committers. Note historical data is not available to committers but is available through the foundation account.

Signed-off-by: Susan Iwai <susan.iwai@eclipse.org>
diff --git a/websites/www.eclipse.org-app4mc-hugo/site/layouts/partials/google_tag_manager.html b/websites/www.eclipse.org-app4mc-hugo/site/layouts/partials/google_tag_manager.html
new file mode 100644
index 0000000..66f1295
--- /dev/null
+++ b/websites/www.eclipse.org-app4mc-hugo/site/layouts/partials/google_tag_manager.html
@@ -0,0 +1,21 @@
+{{- with .Site.Params.google_tag_manager }}
+  <!-- Google Tag Manager -->
+  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+  new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+  'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+  })(window,document,'script','dataLayer','GTM-5WLCZXC');</script>
+  <!-- End Google Tag Manager -->
+  <!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-164550450-1"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'UA-164550450-1');
+</script>
+
+{{- else }}
+{{ template "_internal/google_analytics_async.html" . }}
+{{- end }}
\ No newline at end of file