Update INotifyCollectionChanged events in MenuItems and FooterMenuItems of the NavigationView

[ioswald]

Pull request type

Please check the type of change your PR introduces:

• Update
• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes

What is the current behavior?

If you modify a databound observable collection to navigationview menu/footer items and then modify that list later in the program, the ui will not update with the new items.

Issue Number: N/A

What is the new behavior?

Ui now updates when binding source is updated.

• added source binding list change event handling for navigationview menu/footer items.
• Added collection action handling of menu/footer items.

Other information

[ioswald]

Fixed stackoverflow due to recursive call from collection change event when updating from binding source.

[crippledfaith]

Hi please look at (#1092) You don't need to add the items to another collection as it is an observable collection, any change to the collection will change the items.

[ioswald]

The initial items get added to the observable collection and update when you set the itemssource, but you aren't adding a binding to the itemssource; they're just being added from one to the other; so if the itemssource changes after the initial binding is done; the items do not update.