Add October Matins readings for SanctiM-track saints

9 of October's 13 SanctiM-track saints authored. Found a new wrinkle:
St. Justina and St. Gall are genuinely Monastic-only (no Tridentine
file at all) but their own SanctiM files turn out to be Common-only
with no proper Lectio content -- being Monastic-only doesn't guarantee
real text to transcribe.

src/data/propers/nocturn-readings/st-callistus.yml

@@ -0,0 +1,65 @@
+# Matins Nocturn 2 reading for St. Callistus I, Pope, Martyr (Oct 14)
+# — SanctiM/10-14.txt inherits the whole day (`@Sancti/10-14`) with no
+# Nocturn 2/3 override, so this saint's own vita is sourced from the
+# Tridentine track exactly as for a pre-1955 saint (see memory
+# vu-matins-pre1955-saints, vu-matins-sanctim-saints).
+# web/www/horas/Latin/Sancti/10-14.txt, English/Sancti/10-14.txt.
+# Lectio4-6 combined into one reading, one continuous vita, no genuine
+# source break. No responsory given in the source.
+id: st-callistus
+readings:
+  - nocturn: 2
+    isGospel: false
+    text:
+      la: >-
+        Callistus, Romanus, præfuit Ecclésiæ, Antonino Heliogábalo imperatóre. Constítuit
+        quatuor anni Tempora, quibus jejunium, ex apostolica traditióne acceptum, ab ómnibus
+        servarétur. Ædificávit basilicam sanctæ Maríæ trans Tíberim, et in via Appia vetus
+        cœmetérium ampliávit, in quo multi sancti Sacerdótes et Mártyres sepúlti sunt; unde ab
+        eo Callísti cœmetérium appellátur.
+
+
+        Ejusdem pietátis fuit, quod beáti Calepodii Presbýteri et Mártyris corpus, jactátum
+        in Tíberim, conquiri diligenter curávit, et, invéntum, honorifice sepelívit.
+        Palmatium consulari, Simplícium senatoria dignitate illustres, Felicem et Blandam,
+        qui deínde omnes martyrium subíere, cum baptismo lustrasset, missus est in carcerem,
+        ubi Privátum militem, ulcéribus plenum, admirabíliter sanitáti restitutum, Christo
+        adjunxit; pro quo idem, recens adhuc a fide suscepta, plumbátis usque ad mortem
+        cæsus occubuit.
+
+
+        Sedit Callistus annos quinque, mensem unum, dies duodecim. Ordinatiónibus quinque,
+        mense Decembri, creávit presbyteros sexdecim, diaconos quatuor, episcopos octo. Post
+        longam famem crebrasque verberatiónes præceps jactus in púteum, atque ita martyrio
+        coronátus sub Alexandro imperatóre, illátus est in cœmetérium Calepodii, via
+        Aurelia, tertio ab Urbe lápide, pridie Idus Octobris. Ejus postmodum corpus in
+        basilicam sanctæ Maríæ trans Tiberim, ab ipso ædificatam, delátum, sub ara majori,
+        maxima veneratióne cólitur.
+      en: >-
+        Callistus was a Roman, and ruled the Church in the time of the Emperor Antoninus
+        Heliogabalus. He confirmed the institution of the Ember Fasts, the observance of which
+        hath been received by tradition from the Apostles. He built the Church of St.
+        Mary-beyond-the-Tiber, and enlarged the old burying-place on the Appian Way, wherein
+        are buried so many holy Priests and Martyrs, and which hath since been called, on
+        account of this enlargement, the Cemetery of Kallistus.
+
+
+        It was by his reverence that the body of the blessed Priest and Martyr Calepodius,
+        which had been cast into the Tiber, was carefully looked for, and, when it had been
+        found, honourably buried. He baptized Palmatius, of Consular, and Simplicius, of
+        Senatorial rank, and likewise Felix and Blanda, all of whom in the end underwent
+        martyrdom. On this account he was thrown into prison, where he wonderfully healed a
+        soldier named Privatus, who was full of sores, and so gained him to Christ; and this
+        Privatus had hardly received the faith, before he was lashed to death with scourges
+        loaded with lead.
+
+
+        Callistus sat as Pope five years, one month, and twelve days. He held five Ordinations
+        in the month of December, wherein he ordained sixteen Priests, four Deacons, and eight
+        Bishops. After being long starved, and repeatedly flogged, he was pitched
+        head-foremost down a well, and so crowned with martyrdom, under the Emperor
+        Alexander. His body was carried to the Cemetery of Calepodius on the Aurelian Way, at
+        the third mile-stone from the city, upon the 14th day of October, but was afterwards
+        taken to the Church of St. Mary-beyond-the-Tiber, which had been built by himself.
+        There it lieth beneath the High Altar, and is held in great reverence of all men.
+    status: { la: verified, en: verified }