Fixes bug in tei:line processing, adds fictional places (closes #140)
Adds a missing feature, displaying fictional places, for the print serialization of the indices.
Also there was a curious bug I cannot explain, cf. https://gitlab.gwdg.de/fontane-notizbuecher/SADE/-/commit/f842e8e0d2f164d800900f74991e6e37f4dce7f5#note_144194. In case there are better solutions for this problem I'd be happy to have them.
Edited by Michelle Weidling