Shuffling filesystem to xboxkrnl.

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

src/xenia/kernel/fs/filesystem.h

@@ -1,55 +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_FILESYSTEM_H_
-#define XENIA_KERNEL_FS_FILESYSTEM_H_
-
-#include <xenia/common.h>
-#include <xenia/core.h>
-
-#include <vector>
-
-#include <xenia/kernel/fs/entry.h>
-
-
-namespace xe {
-namespace kernel {
-namespace fs {
-
-
-class Device;
-
-
-class FileSystem {
-public:
-  FileSystem();
-  ~FileSystem();
-
-  int RegisterDevice(const char* path, Device* device);
-  int RegisterLocalDirectoryDevice(const char* path,
-                                   const xechar_t* local_path);
-  int RegisterDiscImageDevice(const char* path, const xechar_t* local_path);
-
-  int CreateSymbolicLink(const char* path, const char* target);
-  int DeleteSymbolicLink(const char* path);
-
-  Entry* ResolvePath(const char* path);
-
-private:
-  std::vector<Device*>  devices_;
-  std::tr1::unordered_map<std::string, std::string> symlinks_;
-};
-
-
-}  // namespace fs
-}  // namespace kernel
-}  // namespace xe
-
-
-#endif  // XENIA_KERNEL_FS_FILESYSTEM_H_