**As** a CEO of XWiki
**I want to** extend the exsting wiki macros for Jira to also show data from OpenProject
**so that** I can offer my customers a fully open source Begin of the insertionalternative.End of the insertion Begin of the deletion alternativeEnd of the deletion

**Acceptance criteria**

* There is an additional project attribute "closedAt".
* This can be selected to be shown in:
* Begin of the insertionWork packageEnd of the insertion Begin of the deletion ProjectEnd of the deletion list
* Begin of the insertionWork packagesEnd of the insertion Begin of the deletion ProjectEnd of the deletion details view
* It can be filterd (similar to createdAt)
* It can be requested through the API