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

Ryujinx.HLE/Gpu/TextureSwizzle.cs

@@ -0,0 +1,11 @@
+namespace Ryujinx.HLE.Gpu
+{
+    enum TextureSwizzle
+    {
+        _1dBuffer           = 0,
+        PitchColorKey       = 1,
+        Pitch               = 2,
+        BlockLinear         = 3,
+        BlockLinearColorKey = 4
+    }
+}