Add ability to evaluate a XIGT file for POS tagging with projection/classification if POS tags exist on the language line but not gloss line.
Add ability to evaluate a XIGT file for POS tagging with projection/classification if POS tags exist on the language line but not gloss line.


Former-commit-id: 0d70223f25e376e2c2f9c2ecf1a60c22292f5f55
rgeorgi/intent