When designing applications one have to have the ability to run asynchronously methods. Running a Task that saves
the record in the database, or maybe validate your username when logging in to the application.
Running asynchronously can also lead to a more responsive UI, as you can show a busy message while you wait for a
Task to finish.
This command can be implemented to set up a ICommand that you can bind in Xaml to a run a
Task. The idea behind it is very much the same as the DelegateCommand, except that this
will require a Func<object, Task> to be execute.
This will enable you to write beautiful MVVM-Xaml, bound to this.