* Clarified the comments for tessdata path * skip unit test for GetComponentImages if Pillow is missing * Build with C++17 for Tesseract>=5.3.4 (which should be required by tesseract 4.0+ and not older versions). * Documentation fixes and other minor improvments OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-tesserocr?expand=0&rev=38