indexer: changes in data model
- Changes term field inside IdxPHRASExxF classes from String to Text.
Signed-off-by: Grzegorz Szpura <grzegorz.szpura@cern.ch>
Co-authored-by: Jiri Kuncar <jiri.kuncar@cern.ch>
NOTE: beware, patch amended by Tibor to use new file names