[Mercury Feature request] Better handling of INotify interface

A proposal to make the implementation of INotify as simple as it should be on the Visual Basic language; just mark a property that it will notify and specify the handling routines as it was a normal event:

'Notifying keyword used like the WithEvents keyword 
Public Notifying Property MyProperty As String

Private Sub MyNotifySub(sender As Object, property as String) NotifiedBy MyClass.MyProperty, MyOtherClass.SomeProperty
     'Sender has the instance where the property changed
     'Property has the name of the changed property
End Sub