taxonomy: Add french term for E160b(ii) (#10966)

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### What

Added a french term for E160b(ii). There was none.

taxonomies/additives.txt

@@ -2271,6 +2271,7 @@ e_number:en: 160b
 < en:E160b
 en: E160b(ii), Annatto norbixin, Norbixin
 xx: E160b(ii)
+fr: E160b(ii), norbixine de rocou
 additives_classes:en: en:colour
 e_number:en: 160b