Add abbyy2hocr transformation by @OCR-D

[zuphilip]

I did not yet test it, but it looks straightforward.

[jmechnich]

I don't see a reason why it should not be included here but after actually testing it, I am not very impressed with the results as a) it does not produce valid output from our ABBYY files and b) it requires a few mandatory parameters that are not always available. Maybe including it in ocr-fileformat will increase the visibility of the transformation so that those shortcomings can be remedied.

[kba]

Maybe including it in ocr-fileformat will increase the visibility of the transformation so that those shortcomings can be remedied.

Can you open issues at https://github.com/OCR-D/format-converters/issues lest we forget @jmechnich? Thank you

[zuphilip]

@kba Yes, thank you for the suggestion. That is what we discussed last Friday and I said that I will do that. We also discussed that at least the required parameters should be make optional for the integration here, because otherwise it might not be possible to use that in the GUI.

[zuphilip]

Here is a PR for making the parameters optional: OCR-D/format-converters#8

[zuphilip]

The upstream PR is merged now. @jmechnich Can you test the new version where the parameters are not mandatory anymore? Is this now giving results in the GUI?

[jmechnich]

Upstream is already broken by another commit. :)
Actually, maybe we should consider using git submodules or a specific commit for the vendor packages in vendor/Makefile as this is not the first time sth like this happened.

[zuphilip]

Here is PR for fixing the newly introduced regressions OCR-D/format-converters#11

BTW I would love to see also some tests integrated with CI in the upstream repo.

[zuphilip]

Okay, upstream is merged now again. @jmechnich Can you give it a try again? 🙏