Resolve "Upgrade code list rules to new eforms-de-codelist version for eForms/DE 1.2"

Closes #75 (closed)

Work check list:

Are these upgraded:

• buyer-contracting-type.gc
• buyer-legal-type_eforms-buyer-legal-type.gc
• economic-operator-size.gc
• eforms-de-specific-legal-basis.gc
• exclusion-ground.gc
• gpp-criteria.gc
• missing-info-submission.gc
• procurement-procedure-type.gc
• received-submission-type.gc
• social-objective.gc
• suitable-business-type.gc
• vehicle-category.gc

Are there new code lists to be integrated?