Updated corsair SDK

This adds support for custom devices (lightning node and commander). And introduced 'fan' as device type.
fixes #23

RGB.NET.Devices.Corsair/Helper/NativeExtensions.cs

@@ -0,0 +1,19 @@
+using RGB.NET.Core;
+using RGB.NET.Devices.Corsair.Native;
+
+namespace RGB.NET.Devices.Corsair
+{
+    internal static class NativeExtensions
+    {
+        internal static Rectangle ToRectangle(this _CorsairLedPosition position)
+        {
+            //HACK DarthAffe 08.07.2018: It seems like corsair introduced a bug here - it's always 0.
+            double width = position.width < 0.5 ? 10 : position.width;
+            double height = position.height < 0.5 ? 10 : position.height;
+            double posX = position.left;
+            double posY = position.top;
+
+            return new Rectangle(posX, posY, width, height);
+        }
+    }
+}