graphics/py-pytesseract: NEW wrapper for tesseract

Python-tesseract is an optical character recognition (OCR) tool for
python. That is, it will recognize and “read” the text embedded in
images.

Python-tesseract is a wrapper for Google’s Tesseract-OCR Engine. It is
also useful as a stand-alone invocation script to tesseract, as it can
read all image types supported by the Pillow and Leptonica imaging
libraries, including jpeg, png, gif, bmp, tiff, and others.
Additionally, if used as a script, Python-tesseract will print the
recognized text instead of writing it to a file.