completely reworked the OCRmyPDF parser.

paperless.conf.example

@@ -41,6 +41,10 @@
 #PAPERLESS_OCR_OUTPUT_TYPE=pdfa
 #PAPERLESS_OCR_PAGES=1
 #PAPERLESS_OCR_IMAGE_DPI=300
+#PAPERLESS_OCR_CLEAN=clean
+#PAPERLESS_OCR_DESKEW=false
+#PAPERLESS_OCR_ROTATE_PAGES=false
+#PAPERLESS_OCR_ROTATE_PAGES_THRESHOLD=10
 #PAPERLESS_OCR_USER_ARGS={}
 #PAPERLESS_CONVERT_MEMORY_LIMIT=0
 #PAPERLESS_CONVERT_TMPDIR=/var/tmp/paperless