Shared exchange functionality (#214)

CryptoExchange.Net/SharedApis/Models/Options/Endpoints/PaginatedEndpointOptions.cs

@@ -0,0 +1,32 @@
+using System.Text;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Options for paginated endpoints
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    public class PaginatedEndpointOptions<T> : EndpointOptions<T> where T : SharedRequest
+    {
+        /// <summary>
+        /// Type of pagination supported
+        /// </summary>
+        public SharedPaginationSupport PaginationSupport { get; }
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        public PaginatedEndpointOptions(SharedPaginationSupport paginationType, bool needsAuthentication) : base(needsAuthentication)
+        {
+            PaginationSupport = paginationType;
+        }
+
+        /// <inheritdoc />
+        public override string ToString(string exchange)
+        {
+            var sb = new StringBuilder(base.ToString(exchange));
+            sb.AppendLine($"Pagination type: {PaginationSupport}");
+            return sb.ToString();
+        }
+    }
+}