Add Ss. Perpetua and Felicity, St. John of God, St. Patrick, St. Cyril

of Jerusalem (March)

Continuing the sweep of previously-never-added sanctoral content. New
shared Common templates: collect-c7b.yml and
benedictus-antiphon-common-of-several-women-martyrs.yml (Commune/C7b,
"several women Martyrs, not Virgins" -- Perpetua and Felicity's own
Common category, not authored before now).

St. Gabriel Archangel (Mar 24), the Annunciation (Mar 25), St. John
Damascene (Mar 27), and St. John Capistrano (Mar 28) are still open --
substantial feasts left for a follow-up pass.

npm test (365 tests) and tsc --noEmit both pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/calendar/sanctoral-calendar.yml

@@ -70,10 +70,14 @@ days:
   # Duplex I. classis, the highest rank in this set so far) has no
   # unique propers in the source at all — see st-benedict.yml.
   "03-04": [st-lucius-i]
+  "03-06": [ss-perpetua-and-felicity]
   "03-07": [st-thomas-aquinas]
+  "03-08": [st-john-of-god]
   "03-09": [st-frances-of-rome]
   "03-10": [forty-holy-martyrs]
   "03-12": [st-gregory-the-great]
+  "03-17": [st-patrick]
+  "03-18": [st-cyril-of-jerusalem]
   "03-19": [st-joseph]
   "03-21": [st-benedict]
   # April — 4/12 of the pre-1955 pull. St. Robert/St. Catherine of Siena