added V2 ListOptions class (#3026)

updated V2 list options subclasses to derive from V2.ListOptions

src/Stripe.net/Services/V2/Core/EventDestinations/EventDestinationListOptions.cs

@@ -4,7 +4,7 @@ namespace Stripe.V2.Core
     using System.Collections.Generic;
     using Newtonsoft.Json;
 
-    public class EventDestinationListOptions : ListOptions
+    public class EventDestinationListOptions : V2.ListOptions
     {
         /// <summary>
         /// Additional fields to include in the response. Currently supports

src/Stripe.net/Services/V2/Core/Events/EventListOptions.cs

@@ -3,7 +3,7 @@ namespace Stripe.V2.Core
 {
     using Newtonsoft.Json;
 
-    public class EventListOptions : ListOptions
+    public class EventListOptions : V2.ListOptions
     {
         /// <summary>
         /// Primary object ID used to retrieve related events.

src/Stripe.net/Services/_base/V2/ListOptions.cs

@@ -0,0 +1,13 @@
+namespace Stripe.V2
+{
+    using Newtonsoft.Json;
+
+    public class ListOptions : BaseOptions
+    {
+        /// <summary>
+        /// A limit on the number of objects to be returned, between 1 and 100.
+        /// </summary>
+        [JsonProperty("limit")]
+        public long? Limit { get; set; }
+    }
+}