Rename Ryujinx.Core to Ryujinx.HLE and add a separate project for a future LLE implementation

Ryujinx.HLE/Gpu/LinearSwizzle.cs

@@ -0,0 +1,19 @@
+namespace Ryujinx.HLE.Gpu
+{
+    class LinearSwizzle : ISwizzle
+    {
+        private int Pitch;
+        private int Bpp;
+
+        public LinearSwizzle(int Pitch, int Bpp)
+        {
+            this.Pitch = Pitch;
+            this.Bpp   = Bpp;
+        }
+
+        public int GetSwizzleOffset(int X, int Y)
+        {
+            return X * Bpp + Y * Pitch;
+        }
+    }
+}