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/Archive/7z/7zEncode.cpp

@@ -370,6 +370,17 @@ HRESULT CEncoder::Encode(
       resetInitVector->ResetInitVector();
     }
 
+    {
+      CMyComPtr<ICompressSetCoderPropertiesOpt> optProps;
+      coder->QueryInterface(IID_ICompressSetCoderPropertiesOpt, (void **)&optProps);
+      if (optProps)
+      {
+        PROPID propID = NCoderPropID::kExpectedDataSize;
+        NWindows::NCOM::CPropVariant prop = (UInt64)unpackSize;
+        RINOK(optProps->SetCoderPropertiesOpt(&propID, &prop, 1));
+      }
+    }
+
     CMyComPtr<ICompressWriteCoderProperties> writeCoderProperties;
     coder->QueryInterface(IID_ICompressWriteCoderProperties, (void **)&writeCoderProperties);
 
@@ -380,7 +391,7 @@ HRESULT CEncoder::Encode(
       CDynBufSeqOutStream *outStreamSpec = new CDynBufSeqOutStream;
       CMyComPtr<ISequentialOutStream> dynOutStream(outStreamSpec);
       outStreamSpec->Init();
-      writeCoderProperties->WriteCoderProperties(dynOutStream);
+      RINOK(writeCoderProperties->WriteCoderProperties(dynOutStream));
       outStreamSpec->CopyToBuffer(props);
     }
     else