Add `language_bcp47` tag (#4753)

* fix ms_terms

* fix ted_talks_iwslt

* move tags to language_bcp47

* fix bad codes

* add language_details and language_bcp47 in DatasetMetadata

* more fixes

* fix wiki_dpr

Commit from https://github.com/huggingface/datasets/commit/aa48a29d1304167dff37cef0ed7542f29376ee2d

README.md

@@ -9,19 +9,15 @@ language:
 - an
 - ang
 - ar
-- ar_TN
 - ara
 - as
 - ast
 - az
-- az_IR
 - bal
 - be
 - bem
 - bg
-- bg_BG
 - bn
-- bn_IN
 - bo
 - br
 - brx
@@ -33,42 +29,16 @@ language:
 - csb
 - cy
 - da
-- da_DK
 - de
-- de_CH
 - dv
 - dz
 - el
 - en
-- en_AU
-- en_CA
-- en_GB
-- en_NZ
-- en_US
-- en_ZA
 - eo
 - es
-- es_AR
-- es_CL
-- es_CO
-- es_CR
-- es_DO
-- es_EC
-- es_ES
-- es_GT
-- es_HN
-- es_MX
-- es_NI
-- es_PA
-- es_PE
-- es_PR
-- es_SV
-- es_UY
-- es_VE
 - et
 - eu
 - fa
-- fa_IR
 - fi
 - fo
 - foo
@@ -85,7 +55,6 @@ language:
 - ha
 - he
 - hi
-- hi_IN
 - hr
 - hu
 - hy
@@ -95,7 +64,6 @@ language:
 - io
 - is
 - it
-- it_IT
 - ja
 - jbo
 - ka
@@ -122,20 +90,16 @@ language:
 - mn
 - mr
 - ms
-- ms_MY
 - mt
 - mus
 - my
 - nb
-- nb_NO
 - nds
 - ne
 - nhn
 - nl
 - nn
-- nn_NO
-- n/o
-- no_nb
+- 'no'
 - nqo
 - nr
 - nso
@@ -146,8 +110,6 @@ language:
 - pl
 - ps
 - pt
-- pt_BR
-- pt_PT
 - quz
 - ro
 - ru
@@ -158,7 +120,6 @@ language:
 - so
 - sq
 - sr
-- sr_ME
 - st
 - sv
 - sw
@@ -166,31 +127,72 @@ language:
 - ta
 - te
 - tg
-- tg_TJ
 - th
 - tk
 - tl
-- tl_PH
 - tmp
 - tr
-- tr_TR
 - ts
 - tt
 - ug
 - uk
 - ur
-- ur_PK
 - uz
 - vi
-- vi_VN
 - wa
 - xh
 - yi
 - yo
-- zh_CN
-- zh_HK
-- zh_TW
+- zh
 - zu
+language_bcp47:
+- ar-TN
+- az-IR
+- bg-BG
+- bn-IN
+- da-DK
+- de-CH
+- en-AU
+- en-CA
+- en-GB
+- en-NZ
+- en-US
+- en-ZA
+- es-AR
+- es-CL
+- es-CO
+- es-CR
+- es-DO
+- es-EC
+- es-ES
+- es-GT
+- es-HN
+- es-MX
+- es-NI
+- es-PA
+- es-PE
+- es-PR
+- es-SV
+- es-UY
+- es-VE
+- fa-IR
+- hi-IN
+- it-IT
+- ms-MY
+- nb-NO
+- nn-NO
+- no-NB
+- pt-BR
+- pt-PT
+- sr-ME
+- tg-TJ
+- tl-PH
+- tr-TR
+- ur-PK
+- vi-VN
+- zh-CN
+- zh-HK
+- zh-TW
 license:
 - unknown
 multilinguality: