* Added event message
* Added CommonSignedObject trait. Updated LibStatut method. Removed unnecessary properties.
* Added SHIPPING_MODIFY notification
* Refactored to use setSignedStatus method
* Updated PHPDoc. Removed unnecessary properties. Added contributor details.
* Added signed status to shipping list
* Added signed status to fetch method
* Fixed type
* Added signed status to notification message
* Updated EN localization
* Fixed static property
* Added event message localization
* Updated EN localization
* Updated PHPDoc
* Added signed status for use in tooltip
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Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>
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