* [ADF-4871] [TaskHeaderCloudComponent] Add Candidate Users/Groups properties
* Added Candidate users/groups properties to the task heade cloud component.
* * Created CardViewArrayItemComponent
* Modified FullName pipe to return username or email incase fullname missing.
* Added candidate Users/Groups properties to the taskcloudheader component.
* Added two service into task-cloudservice
* Updated Demoshell card-view with new widget
* * Fixed failing unit test
* * Fixed comments.
* * Refactored CardViewArrayItem model
* Fixed comments.
* * Changed candidate group icon
