Some code lists and their values are mising comments and/or labels

1. The comment is missing for the following code lists:

• https://vocabulary.uncefact.org/untp/CredentialStatus
• https://vocabulary.uncefact.org/untp/SchemeEndorsementLevel
• https://vocabulary.uncefact.org/untp/productStatus

2. Comments/labels are missing for the values of the following code lists:

• https://vocabulary.uncefact.org/untp/AssessmentSubjectType
• https://vocabulary.uncefact.org/untp/productStatus
• https://vocabulary.uncefact.org/untp/RegistryType
• https://vocabulary.uncefact.org/untp/SchemeAlignmentLevel

Please take into account that comments/labels aren't required for the code list values.

3. It would be nice to rename untp:productStatus to untp:ProductStatus in order to align the naming with the rest of the code list.