Add ProxyInterfaceConsumerViaNuGet project

src-examples/ProxyInterfaceConsumerViaNuGet/Program.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Text.Json;
+
+namespace ProxyInterfaceConsumer
+{
+    class Program
+    {
+        private static JsonSerializerOptions JsonSerializerOptions = new ()
+        {
+            WriteIndented = true
+        };
+
+        static void Main(string[] args)
+        {
+            IPerson p = new PersonProxy(new Person());
+            p.Name = "test";
+            var ap = new AddressProxy(new Address { HouseNumber = 42 });
+            p.Address = ap;
+            p.AddAddress(ap);
+            p.AddAddress(new AddressProxy(new Address { HouseNumber = 1000 }));
+
+            Console.WriteLine(JsonSerializer.Serialize(p, JsonSerializerOptions));
+        }
+    }
+}