Added ``-c project_id | user_id | created_at`` to ``openstack server list``
    command to get these columns as an output.
Change-Id: I18991adf899c7b72c98bb89871bf0715d35943f0
Story: 2007925
		
	
Added ``-c project_id | user_id | created_at`` to ``openstack server list``
    command to get these columns as an output.
Change-Id: I18991adf899c7b72c98bb89871bf0715d35943f0
Story: 2007925