"""Support""" the 'reactions' field on message objects

this is all really broken

src/Discord.Net.WebSocket/API/Gateway/GatewayReaction.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace Discord.API.Gateway
+{
+    public class GatewayReaction : Reaction
+    {
+        [JsonProperty("user_id")]
+        public ulong UserId { get; set; }
+        [JsonProperty("message_id")]
+        public ulong MessageId { get; set; }
+        [JsonProperty("channel_id")]
+        public ulong ChannelId { get; set; }
+        [JsonProperty("emoji")]
+        public Discord.API.Emoji Emoji { get; set; }
+    }
+}