Add Anufo (cko) and Medumba (byv) (#393)

Downstream tasks:
https://phabricator.wikimedia.org/T377380
https://phabricator.wikimedia.org/T377101

Co-authored-by: SrishAkaTux <ssethi@wikimedia.org>

data/langdb.yaml

@@ -135,6 +135,7 @@ languages:
   bwr: [Latn, [AF], bura]
   bxr: [Cyrl, [AS], буряад]
   byn: [Ethi, [AF], ብሊን]
+  byv: [Latn, [AF], Mə̀dʉ̂mbɑ̀]
   bzj: [Latn, [AM], Bileez Kriol]
   bzs: [Sgnw, [AM], Língua brasileira de sinais]
   ca: [Latn, [EU], català]
@@ -174,6 +175,7 @@ languages:
   cjy-hans: [Hans, [AS], 晋语（简化字）]
   cjy-hant: [Hant, [AS], 晉語（正字）]
   ckb: [Arab, [ME], کوردی]
+  cko: [Latn, [AF], Anufɔ]
   ckt: [Cyrl, [AS], ԓыгъоравэтԓьэн]
   cnh: [Latn, [AS], Lai holh]
   cnr: [cnr-latn]

data/language-data.json

@@ -846,6 +846,13 @@
             ],
             "ብሊን"
         ],
+        "byv": [
+            "Latn",
+            [
+                "AF"
+            ],
+            "Mə̀dʉ̂mbɑ̀"
+        ],
         "bzj": [
             "Latn",
             [
@@ -1054,6 +1061,13 @@
             ],
             "کوردی"
         ],
+        "cko": [
+            "Latn",
+            [
+                "AF"
+            ],
+            "Anufɔ"
+        ],
         "ckt": [
             "Cyrl",
             [
@@ -5952,6 +5966,7 @@
             "nnh",
             "bkm",
             "bas",
+            "byv",
             "dua",
             "ar",
             "ksf",