[Enhancement] Manually add and remove breadcrumbs

[pp111]

Thanks for the control. It would be really nice if you can add a feature to use it not for automatic navigation but if we could add items manually, for example:

breadcrumb.PushNewItem(object myDataItem, string label);

Remove item and children breadcrumb.PopAfterItem(object myDataItem);

And an event when a item is clicked OnItemClick(object source, object myDataItem)