repo-groups: add personal flag indicator in advanced view.

rhodecode/templates/admin/repo_groups/repo_group_edit_advanced.html

@@ -4,6 +4,7 b''
  elems = [
     (_('Owner'), lambda:base.gravatar_with_user(c.repo_group.user.email), '', ''),
     (_('Created on'), h.format_date(c.repo_group.created_on), '', ''),
+    (_('Is Personal Group'), c.repo_group.personal or False, '', ''),
 
     (_('Total repositories'), c.repo_group.repositories_recursive_count, '', ''),
     (_('Top level repositories'), c.repo_group.repositories.count(), '', c.repo_group.repositories.all()),