Add May Matins readings for SanctiM-track saints

12 of May's 13 SanctiM-track saints authored (1 left unsourced,
Common-only). Resolves an old loose end from the pre-1955 pass: St.
Romanus Abbot does have a real SanctiM file after all, it's just
Common-only with no proper Lectio content, which looked like a missing
file until actually opened. Also the first isGospel:true case since
January (Ss. Philip and James's Nocturn 3 has a full Gospel pericope,
not a bare incipit).

src/data/propers/nocturn-readings/ss-alexander-eventius-theodulus-and-juvenal.yml

@@ -0,0 +1,55 @@
+# Matins Nocturn 2 reading for Ss. Alexander I, Pope, Eventius and
+# Theodulus, Martyrs, and Juvenal, Bishop and Confessor (May 3) — the
+# correct Tridentine file is the suffixed `Sancti/05-03r.txt` (whose
+# own `Lectio93` in turn just repeats its `Lectio94`, the real proper
+# text). `SanctiM/05-03rM.txt` matches this same suffix and bases
+# `@Sancti/05-03r`, but narrows the feast's own Officium to the three
+# martyrs alone (dropping Juvenal) — same "Monastic office narrows a
+# joint feast" pattern already seen for `ss-vincent-and-anastasius.yml`
+# and `ss-cletus-and-marcellinus.yml`; the full joint text (which
+# genuinely covers all four, Juvenal included) is used here per
+# vu-prefer-text-over-missing (see memory vu-matins-pre1955-saints,
+# vu-matins-sanctim-saints).
+# web/www/horas/Latin/Sancti/05-03r.txt, English/Sancti/05-03r.txt.
+# Single lesson (simplex-feast Lectio94), one continuous account, no
+# responsory given in the source.
+id: ss-alexander-eventius-theodulus-and-juvenal
+readings:
+  - nocturn: 2
+    isGospel: false
+    text:
+      la: >-
+        Alexander Romanus, Hadriáno imperatóre regens Ecclésiam, magnam partem Romanæ
+        nobilitátis ad Christum convértit. Is constítuit ut tantummodo panis et vinum in
+        mysterio offerrétur: vinum autem aqua miscéri jussit, propter sánguinem et aquam, quæ ex
+        Jesu Christi látere profluxérunt; et in Cánone Missæ addidit, Qui pridie quam paterétur.
+        Idem decrevit ut aqua benedicta, sale admixto, perpetuo in ecclésia asservarétur, et in
+        cubiculis adhiberétur ad fugándos dæmones. Sedit annos decem, menses quinque et dies
+        viginti, vitæ sanctitáte et salutáribus institútis illustris. Martyrio coronátus est una
+        cum Eventio et Theodúlo presbyteris, sepultúsque est via Nomentana, tertio ab Urbe
+        lápide, eodem in loco, ubi secúri percússus fuerat; creátis diverso témpore mense
+        Decembri presbyteris sex, diáconis duobus et epíscopis per diversa loca quinque. Eórum
+        corpora, póstea in Urbem translata, in ecclésia sanctæ Sabinæ condita sunt. In eumdem
+        diem incidit beáta mors sancti Juvenalis, Narniénsis epíscopi; qui, cum plurimos in ea
+        urbe sanctitáte et doctrina Christo peperísset, clarus miraculis in pace quiévit ibique
+        honorifice sepúltus est.
+      en: >-
+        Alexander was a Roman, who ruled the Church during the reign of the Emperor Hadrian. He
+        turned to Christ a great number of the Roman nobility. He ordained that nothing but bread
+        and wine should be offered at the mystery, but that some water should be mingled with the
+        wine, in memory of the Blood and Water Which flowed from the Side of Jesus Christ. He
+        added to the Canon of the Mass the words Who, the night before He suffered. He also
+        ordained that blessed water mingled with salt, should be kept always in Churches, and
+        should be used in private rooms to scare away devils. He sat in the throne of Peter ten
+        years, five months, and twenty days. He hath great renown on account of the holiness of
+        his life, and the usefulness of his institutions. He was crowned with martyrdom, together
+        with the Priests Eventius and Theodulus, and was buried beside the Nomentan Way, at the
+        third mile-stone from the city, in the same place where he had been beheaded. During his
+        Popedom he held diverse Advent ordinations, and at them ordained six Priests, two
+        Deacons, and five Bishops for diverse places. The bodies of these three Martyrs,
+        Alexander, Eventius, and Theodulus, were afterwards brought into the city, and buried in
+        the Church of St Sabina. On this day likewise occurred the blessed death of Juvenal, the
+        holy Bishop of Narni, who by the holiness of his life and teaching, became the father in
+        Christ of so many of the dwellers in that city. He fell asleep very peacefully, with great
+        fame for miracles, and was there honourably buried.
+    status: { la: verified, en: verified }