Initial split of the modules

NadekoBot.Modules.Games/Common/ChatterBot/OfficialCleverbotSession.cs

@@ -0,0 +1,33 @@
+using Newtonsoft.Json;
+using System.Net.Http;
+using System.Threading.Tasks;
+
+namespace NadekoBot.Modules.Games.Common.ChatterBot
+{
+    public class OfficialCleverbotSession : IChatterBotSession
+    {
+        private readonly string _apiKey;
+        private string _cs = null;
+
+        private string queryString => $"https://www.cleverbot.com/getreply?key={_apiKey}" +
+            "&wrapper=nadekobot" +
+            "&input={0}" +
+            "&cs={1}";
+
+        public OfficialCleverbotSession(string apiKey)
+        {
+            this._apiKey = apiKey;
+        }
+
+        public async Task<string> Think(string input)
+        {
+            using (var http = new HttpClient())
+            {
+                var dataString = await http.GetStringAsync(string.Format(queryString, input, _cs ?? "")).ConfigureAwait(false);
+                var data = JsonConvert.DeserializeObject<CleverbotResponse>(dataString);
+                _cs = data?.Cs;
+                return data?.Output;
+            }
+        }
+    }
+}