Shuffling filesystem to xboxkrnl.

This doesn't really change anything yet, just moves things.
Also fixed some bad over-including.

src/xenia/kernel/fs/device.h

@@ -1,43 +0,0 @@
-/**
- ******************************************************************************
- * Xenia : Xbox 360 Emulator Research Project                                 *
- ******************************************************************************
- * Copyright 2013 Ben Vanik. All rights reserved.                             *
- * Released under the BSD license - see LICENSE in the root for more details. *
- ******************************************************************************
- */
-
-#ifndef XENIA_KERNEL_FS_DEVICE_H_
-#define XENIA_KERNEL_FS_DEVICE_H_
-
-#include <xenia/common.h>
-#include <xenia/core.h>
-
-#include <xenia/kernel/fs/entry.h>
-
-
-namespace xe {
-namespace kernel {
-namespace fs {
-
-
-class Device {
-public:
-  Device(const char* path);
-  virtual ~Device();
-
-  const char* path();
-
-  virtual Entry* ResolvePath(const char* path) = 0;
-
-protected:
-  char*       path_;
-};
-
-
-}  // namespace fs
-}  // namespace kernel
-}  // namespace xe
-
-
-#endif  // XENIA_KERNEL_FS_DEVICE_H_