Use Mapster as mapper (#39)

* mapster

* ,

* .

* ...

* .

* .

* .

* .

* .

* .

* int

* .

* ;

src-examples/ProxyInterfaceConsumerForPnP/Implementations/ClientRuntimeContextExtensions.cs

@@ -0,0 +1,14 @@
+using System.Threading.Tasks;
+using Microsoft.SharePoint.Client;
+using ProxyInterfaceConsumerForPnP.Interfaces;
+
+namespace ProxyInterfaceConsumerForPnP.Implementations;
+
+public static class ClientRuntimeContextExtensions
+{
+    public static Task ExecuteQueryRetryAsync(this IClientRuntimeContext clientContext, int retryCount = 10, string? userAgent = null)
+    {
+        ClientRuntimeContext clientObject_ = Mapster.TypeAdapter.Adapt<ClientRuntimeContext>(clientContext);
+        return clientObject_.ExecuteQueryRetryAsync(retryCount, userAgent);
+    }
+}