implement NavigateCommand

Apollon.WPF/ViewModels/NavBarViewModel.cs

@@ -0,0 +1,16 @@
+using Apollon.WPF.Stores;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Apollon.WPF.ViewModels
+{
+    public class NavBarViewModel : ViewModelBase
+    {
+        public NavBarViewModel(NavigationStore navigationStore)
+        {
+        }
+    }
+}