[TENE-455] Document content processing should only be possible for records with an open license (!338) · Merge requests · DL-Team / Aggregation / DACE

merge tene-438 to tene-455, add RecordLicenseExtractor, add cancelling ocr and omr if license is not public, add unit tests.

[TENE-455] Document content processing should only be possible for records with an open license