scaffolding for interop_client and little bit of project renaming
diff --git a/src/csharp/MathClient/MathClient.cs b/src/csharp/MathClient/MathClient.cs
new file mode 100644
index 0000000..45222ab
--- /dev/null
+++ b/src/csharp/MathClient/MathClient.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Runtime.InteropServices;
+using Google.GRPC.Core;
+using System.Threading;
+
+namespace math
+{
+	class MathClient
+    {
+		public static void Main (string[] args)
+		{
+			using (Channel channel = new Channel("127.0.0.1:23456"))
+			{
+				MathGrpc.IMathServiceClient stub = new MathGrpc.MathServiceClientStub(channel);
+				MathExamples.DivExample(stub);
+
+                MathExamples.FibExample(stub);
+
+				MathExamples.SumExample(stub);
+
+				MathExamples.DivManyExample(stub);
+			}
+           
+            GrpcEnvironment.Shutdown();
+		}
+	}
+}