Changes

feat(verse_stats): lg column für line group
 (commit: 3250165)

feat(verse_stats): allow standalone usage

we can use files from the released edition now
 (commit: 2ad6980)

fix(verse_stats): remove critical apparatus before processing
 (commit: 6e29280)

fix(verse_stats): iterate over TEI instead of HTML

there are antilabe-related verse numbers with a trailing i/m/f that are
normalized in the HTML version, so to really catch everything iterate
over the TEI.
 (commit: ac0f4d2)