Add Azerbaijani language

src/QGCApplication.cc

@@ -449,6 +449,9 @@ void QGCApplication::setLanguage()
         case 19:
             _locale = QLocale(QLocale::Turkish);
             break;
+        case 20:
+            _locale = QLocale(QLocale::Azerbaijani);
+            break;
         }
     }
     //-- We have specific fonts for Korean

src/Settings/App.SettingsGroup.json

@@ -249,8 +249,8 @@
     "name":             "language",
     "shortDesc": "Language",
     "type":             "uint32",
-    "enumStrings":      "System,български (Bulgarian),中文 (Chinese),Nederlands (Dutch),English,Suomi (Finnish),Français (French),Deutsche (German),Ελληνικά (Greek), עברית (Hebrew),Italiano (Italian),日本人 (Japanese),한국어 (Korean),Norsk (Norwegian),Polskie (Polish),Português (Portuguese),Pусский (Russian),Español (Spanish),Svenska (Swedish),Türk (Turkish)",
-    "enumValues":       "0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19",
+    "enumStrings":      "System,български (Bulgarian),中文 (Chinese),Nederlands (Dutch),English,Suomi (Finnish),Français (French),Deutsche (German),Ελληνικά (Greek), עברית (Hebrew),Italiano (Italian),日本人 (Japanese),한국어 (Korean),Norsk (Norwegian),Polskie (Polish),Português (Portuguese),Pусский (Russian),Español (Spanish),Svenska (Swedish),Türk (Turkish),Azerbaijani (Azerbaijani)",
+    "enumValues":       "0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20",
     "default":     0
 },
 {