[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)

[IeuanWalker]

@pp111 glad you like it :)

I'm quite busy on other stuff atm, so will be a while before i could look at this.
But am open to PRs.

[IeuanWalker]

Transferred from Xamarin repo to the Maui repo, as only bug fixes will be done to the xamarin repo from now on.

[SF-Simon]

Transferred from Xamarin repo to the Maui repo, as only bug fixes will be done to the xamarin repo from now on.

This is really cool. I have introduced it into my new project. If your time allows, please keep your enthusiasm for it.

thank you so much.