Adding Shavian script for English to support local Wikisource instance. Source for autonym is the Kingsley-Read Lexicon. (https://readlex.pythonanywhere.com/)

data/langdb.yaml

@@ -235,6 +235,7 @@ languages:
   en: [Latn, [EU, AM, AF, ME, AS, PA, WW], English]
   en-ca: [Latn, [AM], Canadian English]
   en-gb: [Latn, [EU, AS, PA], British English]
+  en-shaw: [Shaw, [EU, AM, AF, ME, AS, PA, WW], 𐑦𐑙𐑜𐑤𐑦𐑖]
   en-simple: [Latn, [WW], Simple English]
   en-us: [Latn, [AM], American English]
   eo: [Latn, [WW], Esperanto]
@@ -887,6 +888,8 @@ languages:
 scriptgroups:
  # It's hard to find a better place for Goth except the Latin group.
   Latin: [Latn, Goth]
+ # Shavian is an alternative script to Latn for all English regions
+  Shavian: [Shaw]
  # Greek is probably different enough from Latin and Cyrillic, but user testing
  # may prove otherwise.
   Greek: [Grek]

data/language-data.json

@@ -1447,6 +1447,19 @@
             ],
             "British English"
         ],
+        "en-shaw": [
+            "Shaw",
+            [
+                "EU",
+                "AM",
+                "AF",
+                "ME",
+                "AS",
+                "PA",
+                "WW"
+            ],
+            "𐑦𐑙𐑜𐑤𐑦𐑖"
+        ],
         "en-simple": [
             "Latn",
             [
@@ -5586,6 +5599,9 @@
             "Latn",
             "Goth"
         ],
+        "Shavian": [
+            "Shaw"
+        ],
         "Greek": [
             "Grek"
         ],
@@ -6243,7 +6259,8 @@
             "tr",
             "ga",
             "gd",
-            "kw"
+            "kw",
+            "en-shaw"
         ],
         "GD": [
             "en"