Make pending report text vendor agnostic

Closes PLAT-2692

Test Plan:
- Create an originality report with no score and a
  workflow state of 'pending'.
- View the associated submission in speedgrader.
- Click the pending clock itcon and verify that a
  message that is vendor agnostic is shown.

Change-Id: Id47b9474e11da756013663a93c5b223137476f9d
Reviewed-on: https://gerrit.instructure.com/117850
Tested-by: Jenkins
Reviewed-by: Andrew Butterfield <[email protected]>
QA-Review: August Thornton <[email protected]>
Product-Review: Jesse Poulos <[email protected]>

public/javascripts/speed_grader.js

@@ -1454,7 +1454,7 @@ import './vendor/ui.selectmenu'
         });
 
         var defaultInfoMessage = I18n.t('turnitin.info_message',
-                                        'This file is still being processed by turnitin. Please check back later to see the score'),
+                                        'This file is still being processed by the plagiarism detection tool associated with the assignment. Please check back later to see the score.'),
             defaultErrorMessage = I18n.t('turnitin.error_message',
                                          'There was an error submitting to the similarity detection service. Please try resubmitting the file before contacting support.');
         var $turnitinInfo = $(turnitinInfoTemplate({