LibUnicode: Parse Unicode CLDR scripts and generate locale mappings

Author: https://github.com/trflynn89
Commit: 0f02def3c2
Pull-request: https://github.com/SerenityOS/serenity/pull/9622
Reviewed-by: https://github.com/linusg

Userland/Libraries/LibUnicode/Locale.cpp

@@ -186,4 +186,13 @@ Optional<StringView> get_locale_territory_mapping([[maybe_unused]] StringView lo
 #endif
 }
 
+Optional<StringView> get_locale_script_mapping([[maybe_unused]] StringView locale, [[maybe_unused]] StringView script)
+{
+#if ENABLE_UNICODE_DATA
+    return Detail::get_locale_script_tag_mapping(locale, script);
+#else
+    return {};
+#endif
+}
+
 }