Refactor IPC services to have commands into separate classes, fix readme url

Ryujinx.Core/OsHle/IpcServices/Time/ISystemClock.cs

@@ -0,0 +1,42 @@
+using Ryujinx.Core.OsHle.Ipc;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Core.OsHle.IpcServices.Time
+{
+    class ISystemClock : IIpcService
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        private static DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+
+        private SystemClockType ClockType;
+
+        public ISystemClock(SystemClockType ClockType)
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                { 0, GetCurrentTime }
+            };
+
+            this.ClockType = ClockType;
+        }
+
+        public long GetCurrentTime(ServiceCtx Context)
+        {
+            DateTime CurrentTime = DateTime.Now;
+
+            if (ClockType == SystemClockType.User ||
+                ClockType == SystemClockType.Network)
+            {
+                CurrentTime = CurrentTime.ToUniversalTime();
+            }
+
+            Context.ResponseData.Write((long)(DateTime.Now - Epoch).TotalSeconds);
+
+            return 0;
+        }
+    }
+}