[pango] (9 commits) ...Merge branch 'tab-align' into 'main'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  2ebc3d7... docs: Add a note on tabs (*)
  7a96294... test-layout: Make --fonts work as expected (*)
  b8dbc92... tabs: Add other tab alignments (*)
  60ae4ac... serializer: Support tab alignments (*)
  a6ed4ff... layout: Implement tab alignments (*)
  ae8297b... tabs: Add a decimal point (*)
  cf522dc... tabs: Tweak string format (*)
  52b1d2a... Add a test with tab alignments (*)
  7b8d9ef... Merge branch 'tab-align' into 'main'

(*) This commit already existed in another branch; no separate mail sent