Added Hindi language (#6572)

Fixes #6508

Author: G-nizam-A

i18n/config.json

@@ -89,6 +89,16 @@
     "enabled": false,
     "default": false
   },
+  {
+    "code": "hi",
+    "localName": "हिन्दी",
+    "name": "Hindi",
+    "langDir": "ltr",
+    "dateFormat": "DD/MM/YYYY",
+    "hrefLang": "hi",
+    "enabled": false,
+    "default": false
+  },
   {
     "code": "id",
     "localName": "Bahasa Indonesia",