Import transcriptions from PDF

I propose to work on a transformation scenario enabling users to transform a PDF into an ALTO XML v. 4 compatible with eScriptorium. At the moment I have two use cases:

PDF generated with FineReader
PDF generated with Limb

For now, this would be a step the user has to take before using the "import XML" option, outside of eScriptorium.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information