AA-173: Assignment Type on Dates Page

Appending the assignment type to each graded
assignment on the Dates Tab. Exposed the 'format'
field, which corresponds to the graded assignment type.

openedx/features/calendar_sync/tests/test_ics.py

@@ -33,10 +33,10 @@ class TestIcsGeneration(TestCase):
 
     def make_assigment(
         self, block_key=None, title=None, url=None, date=None, contains_gated_content=False, complete=False,
-        past_due=False
+        past_due=False, assignment_type=None
     ):
         """ Bundles given info into a namedtupled like get_course_assignments returns """
-        return _Assignment(block_key, title, url, date, contains_gated_content, complete, past_due)
+        return _Assignment(block_key, title, url, date, contains_gated_content, complete, past_due, assignment_type)
 
     def expected_ics(self, *assignments):
         """ Returns hardcoded expected ics strings for given assignments """