Add foundation

Toolkit.Foundation/NavigationProvider.cs

@@ -0,0 +1,16 @@
+namespace Toolkit.Foundation;
+
+public class NavigationProvider(IEnumerable<INavigation> navigations) :
+    INavigationProvider
+{
+    public INavigation? Get(Type type)
+    {
+        if (navigations.FirstOrDefault(x => type == x.Type ||
+            type.BaseType == x.Type) is INavigation navigation)
+        {
+            return navigation;
+        }
+
+        return default;
+    }
+}