Enforce UTF-8 restriction on UTF8_* data types

[c-suh]

Issue discovered by NSSDCA when a submitted bundle failed processing. Details here

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Expected

Per https://pds.nasa.gov/datastandards/documents/im/current/index_1F00.html, we need to enforce UTF8 for fields that specify UTF8_* as their data type.

• UTF8_Short_String_Collapsed
• UTF8_Short_String_Preserved
• UTF8_String
• UTF8_Text_Collapsed
• UTF8_Text_Preserved

Test data

bundle_kaguya_derived_HasSmartQuotes.xml.txt

this product fails because it uses smart quotes in the description

$ perl -ne 'print "$. $_" if m/[\x80-\xFF]/' /Users/jpadams/test/utf8_issue/bundle_kaguya_derived_HasSmartQuotes.xml
22           The SELENE mission was the Japanese mission to the Moon with a main orbiter “Kaguya” and