native amount/offset handling

Pilz.Net/Api/Client/IBaseClient.cs

@@ -7,5 +7,6 @@ public interface IBaseClient<T> where T : IDataObject
     Task Delete(int id);
     Task<T> Get(int id);
     Task<IEnumerable<T>> GetAll();
+    Task<IEnumerable<T>> GetAll(int offset, int amount);
     Task<T> Save(T item);
 }