Handle the case where we cannot do OCR
In the case where we cannot do OCR (to be defined - missing language support?), create special fallback path. The fallback path would set the ocr
value to the value as outlined in Hank's post: https://internetarchive.slack.com/archives/G01C5TS47LM/p1602638359230900
The special case path would also create a minimally valid hocr file containing the same error message, if within hOCR spec.