Extension to the XLIFFFilter to handle XTM specific metadata in the XLIFF
document.
It seems that XTM uses the following:
- state-qualifier="exact-match" --> Context match
- state-qualifier="leveraged-tm" --> 100% match if has alt-trans with match-quality="100%"
- state-qualifier="leveraged-tm" --> Fuzzy if has alt-trans with match-quality="100%"
- state-qualifier="fuzzy-match" --> Fuzzy
- state-qualifier="leveraged-inherited" --> Repetition (origin in alt-trans has the reference number)
- state-qualifier="x-fuzzy-forward" --> Fuzzy repetition (origin in alt-trans has the reference number)
- state-qualifier="x-alphanumeric" --> No translation to do (normally)
- state-qualifier="x-numeric" --> No translation to do (normally)
- state-qualifier="x-measurement" --> No translation to do (normally)
- state-qualifier="x-punctuation" --> No translation to do (normally)
- state-qualifier="x-manual-notrans" --> No translation to do -> locked