Encode UPC-E number system 1 with its own check digit

[SashaMIT]

Summary

• Expanding a UPC-E code always started with number system 0, and an 8-digit code dropped the leading digit.
• 112300000458 was drawn with the parity for check digit 1, the check digit of 012300000451. It now uses check digit 8.
• A 6-digit code still uses number system 0. 038000000216 is unchanged.

Test plan

• dotnet test BarcodeStandardTests/BarcodeStandardTests.csproj (90 tests)
• Before the fix, the two new rows failed.

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