Adding wikipedia Bengali file to files/bengali folder

.gitattributes

@@ -61,3 +61,4 @@ files/odia/odia_wikidata_iast.csv filter=lfs diff=lfs merge=lfs -text
 files/hindi/hindi_wikidata_iast.csv filter=lfs diff=lfs merge=lfs -text
 files/telugu/telugu_wikidata_iast.csv filter=lfs diff=lfs merge=lfs -text
 files/tamil/tamil_wikidata_iast.csv filter=lfs diff=lfs merge=lfs -text
+files/bengali/bengali_wikidata_iast.csv filter=lfs diff=lfs merge=lfs -text

files/bengali/bengali_wikidata_iast.csv

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:23259ef8d2ad6655f2688303dfd11a88b6e0d97340964771ef383199d0b00139
+size 1454566408