Consider cardinality extension from (0..1) to (0..n) for NoticeLanguageCode

EU institutions and some countries with multiple official languages (ex: Belgium, Switzerland, etc.) create notices in more than one linguistic versions. While the LanguageID attribute allows to have all linguistic versions in a single instance, the cardinality of the NoticeLanguageCode does not allow for an identification of all of them. Having the cardinality extended would be an appropriate way to deal with this concern.