Add project files.

App/WeddingBooth/Views/GuestViewModel.cs

@@ -0,0 +1,17 @@
+using TheXamlGuy.Framework.Core;
+
+namespace WeddingBooth.Views;
+
+public class GuestViewModel : ObservableViewModel
+{
+    public GuestViewModel(IPropertyBuilder propertyBuilder, 
+        IEventAggregator eventAggregator, 
+        IServiceFactory serviceFactory, 
+        IDisposer disposer,
+        string name) : base(propertyBuilder, eventAggregator, serviceFactory, disposer)
+    {
+        Name = name;
+    }
+
+    public string Name { get; }
+}