Added more shader instructions, including BFE, BRA (partial), FMNMX, ISCADD, SHL, LD_C, some shader related fixes, added support for texture component selection

Ryujinx.Graphics/Gal/Shader/ShaderIrCmnt.cs

@@ -0,0 +1,12 @@
+namespace Ryujinx.Graphics.Gal.Shader
+{
+    class ShaderIrCmnt : ShaderIrNode
+    {
+        public string Comment { get; private set; }
+
+        public ShaderIrCmnt(string Comment)
+        {
+            this.Comment = Comment;
+        }
+    }
+}