Update package for the XAML Behaviors to be sourced from Nuget

[jamespfluger]

Turns out that the XAML behavior package, previously included in the Blend SDK, is now deprecated. Luckily Microsoft was kind enough to make it open source and install it via NuGet.

As linked above, the migration steps are:

To save you a click, this is the main steps to migrate:

1. Remove reference to “Microsoft.Expression.Interactions” and “System.Windows.Interactivity”
2. Install the Microsoft.Xaml.Behaviors.Wpf NuGet package.
3. XAML files – replace the xmlns namespaces http://schemas.microsoft.com/expression/2010/interactivity and http://schemas.microsoft.com/expression/2010/interactions with http://schemas.microsoft.com/xaml/behaviors
4. C# files – replace the usings in c# files “Microsoft.Xaml.Interactivity” and “Microsoft.Xaml.Interactions” with “Microsoft.Xaml.Behaviors”