#86 Email enhancement

* adds object titles to email sending

templates/email/sharing/shared_access_removed.html

@@ -11,6 +11,8 @@
         <br>
         <strong>{{obj_identifier}}</strong>
         <br>
+        <strong>"{{obj_title}}"</strong>
+        <br>
         {% trans 'However, you are still able to view the dataset content.' %}
         {% trans 'Please use the provided search filter on the dataset`s overview pages to find them.' %}
         <br>