Initial split of the modules

NadekoBot.Core/Services/IStatsService.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Threading.Tasks;
+
+namespace NadekoBot.Services
+{
+    public interface IStatsService : INService
+    {
+        string Author { get; }
+        long CommandsRan { get; }
+        string Heap { get; }
+        string Library { get; }
+        long MessageCounter { get; }
+        double MessagesPerSecond { get; }
+        long TextChannels { get; }
+        long VoiceChannels { get; }
+        int GuildCount { get; }
+
+        TimeSpan GetUptime();
+        string GetUptimeString(string separator = ", ");
+        void Initialize();
+        Task<string> Print();
+    }
+}