Added Simple Reverse Test for OCR

The point of this test to verify that we are more confident
right side up than upside down. So far it appears weak but
pretty confident.

Next up is running similar test on whole shreds
Implement Fast Parallel OCR Orientation Validation

- Implemented it in a test -> need to move code to OCR class
- Renamed other test
- Removed Emboss Text from OCR Preprocessing