Adf 568 validate author or director for thesis

https://issues.unige.ch/browse/AOU-568

AoU-Common/src/main/resources/locale/messages_aou.properties

@@ -60,6 +60,8 @@ deposit.error.container.identifiers.invalid_urn=The value is not a valid URN
 deposit.error.structure.invalid_code=This Structure code doesn't exit
 deposit.error.researchGroup.invalid_code=This research group code doesn't exit
 deposit.error.contributors.appears_more_than_once=This contributor appears more than once
+deposit.error.contributors.missing_author_in_contributors=Missing author for this subtype of publication:''{0}''
+deposit.error.contributors.missing_director_in_contributors=Missing director for this subtype of publication:''{0}''
 deposit.error.field_cannot_be_empty=This field cannot be empty
 deposit.error.field_invalid_value=This value is not valid
 deposit.error.date.invalid_date=This date is not a valid date