Add Pagination example

examples/Pagination.cs

@@ -0,0 +1,31 @@
+using SMSApi.Api;
+
+var client = new ClientOAuth("token");
+var features = new Features(client);
+
+var listSendernames = (uint collectionLimit, uint collectionOffset) =>
+{
+    var list = features.Sendernames().List();
+
+    list.Limit = collectionLimit;
+    list.Offset = collectionOffset;
+
+    return list.Execute();
+};
+
+const uint limit = 25;
+uint offset = 0;
+bool hasMoreItems;
+
+do
+{
+    var sendernames = listSendernames(limit, offset);
+
+    sendernames.Collection.ForEach(sendername =>
+    {
+        Console.WriteLine($"Sender: {sendername.Sender}");
+    });
+
+    hasMoreItems = sendernames.Size > limit + offset;
+    offset += limit;
+} while (hasMoreItems);