add text orientation property to transcriptions (editable in admin)

closes #850 (closed) #851 (closed) #852 (closed) #853 (closed) #854 (closed) #855 (closed) kind of accidentally because I started fixing the tests that broke

arkindex/documents/api/ml.py

@@ -263,6 +263,7 @@ class ElementTranscriptionsBulk(CreateAPIView):
                 element=annotation['element'],
                 worker_version=worker_version,
                 text=annotation['text'],
+                orientation=annotation['orientation'],
                 confidence=annotation['confidence'],
             )
             annotation['id'] = transcription.id