Update to 7-Zip 17.01 Beta from Igor Pavlov

- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
  7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
  CPU utilization was slightly improved.
- 7-zip now creates multi-block xz archives by default. Block size can be
  specified with -ms[Size]{m|g} switch.
- xz decoder now can unpack random block from multi-block xz archives.  7-Zip
  File Manager now can open nested multi-block xz archives (for example,
  image.iso.xz) without full unpacking of xz archive.
- 7-Zip now can create zip archives from stdin to stdout.
- 7-Zip command line: @listfile now doesn't work after -- switch.  Use
  -i@listfile before -- switch instead.

fixed bugs:
- 7-Zip could add unrequired alternate file streams to WIM archives, for
  commands that contain filename wildcards and -sns switch.
- 7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
- 7-Zip 17.00 beta ignored "Use large memory pages" option.

CPP/7zip/Compress/XzDecoder.h

@@ -3,13 +3,11 @@
 #ifndef __XZ_DECODER_H
 #define __XZ_DECODER_H
 
-#include "../../Common/MyCom.h"
-#include "../ICoder.h"
-
 #include "../../../C/Xz.h"
 
+#include "../../Common/MyCom.h"
 
-// #include "../../Archive/XzHandler.h"
+#include "../ICoder.h"
 
 namespace NCompress {
 namespace NXz {