Initial split of the modules

NadekoBot.Core/Common/PlatformHelper.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace NadekoBot.Common
+{
+    public static class PlatformHelper
+    {
+        private const int ProcessorCountRefreshIntervalMs = 30000;
+
+        private static volatile int _processorCount;
+        private static volatile int _lastProcessorCountRefreshTicks;
+
+        public static int ProcessorCount {
+            get {
+                var now = Environment.TickCount;
+                if (_processorCount == 0 || (now - _lastProcessorCountRefreshTicks) >= ProcessorCountRefreshIntervalMs)
+                {
+                    _processorCount = Environment.ProcessorCount;
+                    _lastProcessorCountRefreshTicks = now;
+                }
+
+                return _processorCount;
+            }
+        }
+    }
+}