Add Aja (ajg)

Requested for translatewiki at
https://translatewiki.net/wiki/Thread:Support/Request_for_new_language_Aja_(ajg)

Autonym according to:
"Alphabet des Langues Nationales De la République du Bénin"
Centre National de Linguistique Appliquée

data/langdb.yaml

@@ -14,6 +14,7 @@ languages:
   af: [Latn, [AF], Afrikaans]
   agq: [Latn, [AF], aghɨ̂m]
   ahr: [Deva, [AS], अहिराणी]
+  ajg: [Latn, [AF], ajagbe]
   ajp: [Arab, [ME], شامي]
   ajp-arab: [ajp]
   ajp-latn: [Latn, [ME], šāmi]

data/language-data.json

@@ -100,6 +100,13 @@
             ],
             "अहिराणी"
         ],
+        "ajg": [
+            "Latn",
+            [
+                "AF"
+            ],
+            "ajagbe"
+        ],
         "ajp": [
             "Arab",
             [