Add Template Profiler Panel

This one is similar to Template Timings, but uses
different visualisation approach and also works
correctly with servers which reuse threads for different
requests.

Does not include any SQL stats.

docs/panels.rst

@@ -238,6 +238,16 @@ Useful to debug project when you use `django-dynamicsites
 <https://bitbucket.org/uysrc/django-dynamicsites/src>`_ which sets SITE_ID
 dynamically.
 
+Template Profiler
+~~~~~~~~~~~~~~~~~
+
+URL: https://github.com/node13h/django-debug-toolbar-template-profiler
+
+Path: ``template_profiler_panel.panels.template.TemplateProfilerPanel``
+
+Shows template render call duration and distribution on the timeline. Lightweight.
+Compatible with WSGI servers which reuse threads for multiple requests (Werkzeug).
+
 Template Timings
 ~~~~~~~~~~~~~~~~