v0.7

What's new:

• require biblatex ≥ 3.5
• new sbl-paper style file and expanded example paper
  • Hebrew and Greek support
  • title page
  • table of contents
  • list of abbreviations
  • bibliography
  • separate subject, author, and Scripture reference indexes
  • hyperref support
• new data model replacing sblxref with xref/related/relatedoptions
• bug fixes