Investigate image library

[datakurre]

https://pypi.org/project/robotframework-imagelibrary/

Requires OpenCV and Tesseract OCR both which may be hard to install elsewhere.

[bollwyvl]

https://anaconda.org/conda-forge/tesseract/files?version=4.1.1

It's another 0.3GB on linux/osx, but who's counting?