Add method to retrieve service descriptions
Services can have descriptions, but the Qt api doesn't currently allow to get them. This commit adds a new description() method in the Service class. A test case with the new method has also been added.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Services can have descriptions, but the Qt api doesn't currently allow to get them. This commit adds a new description() method in the Service class. A test case with the new method has also been added.