add UI display for LastUsed property to show the LastUsed time on the UI with the UniqueId.

format the date at the same time
#56

DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/index.html

@@ -188,6 +188,7 @@
                                     <input type="checkbox" data-bind="name: Id, value: UniqueId, checked: IsAssociatedToUser" />
                                 </span>
                             <input type="text" readonly class="form-control" data-bind="value: UniqueId"/>
+                            <input type="text" readonly class="form-control" data-bind="value: 'Last Used on: '+$root.convertToDisplayDateTime(LastUsed)"/>
                         </div>
                     </div>
                     <!-- /ko -->