Shuffling spirv code so it's not tied to xe::gpu.

Will make it easier to use in standalone apps.

src/xenia/ui/spirv/spirv_util.cc

@@ -0,0 +1,20 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "xenia/ui/spirv/spirv_util.h"
+
+namespace xe {
+namespace ui {
+namespace spirv {
+
+//
+
+}  // namespace spirv
+}  // namespace ui
+}  // namespace xe