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

Will make it easier to use in standalone apps.

src/xenia/gpu/shader_translator.h

@@ -0,0 +1,28 @@
+/**
+ ******************************************************************************
+ * 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. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_SHADER_TRANSLATOR_H_
+#define XENIA_GPU_SHADER_TRANSLATOR_H_
+
+#include "xenia/ui/spirv/spirv_util.h"
+
+namespace xe {
+namespace gpu {
+
+class ShaderTranslator {
+ public:
+  ShaderTranslator();
+
+ private:
+};
+
+}  // namespace gpu
+}  // namespace xe
+
+#endif  // XENIA_GPU_SHADER_TRANSLATOR_H_