Multivolume extract no Intermediate file

[anywhereyang]

No description provided.

[rikyoz]

Hi!
Thank you for this PR, and sorry for the late reply!
I don't know if you have already looked at them, but I allowed myself to make some further changes to your code.
Specifically:

• I added some missing includes that prevented the compilation of the library (1c4c76f).
• I made the code use the safer sprintf_s function rather than sprintf (b6b4470).
• I removed the necessity of conversions between std::wstring/std::string strings (6fca420).
  • Now, the new code uses only the std::wstring string type (as the rest of the library), and hence it uses the swprintf_s function.
• I changed the code to avoid unnecessary string allocation when checking if an archive is multi-volume (4acacff).
• I made the code work also for non-7z multi-volume archives (f364174).
  • For some reason, the code works for all archive formats except for bzip2 and xz archives. I'll need to investigate this further.
• I changed the code to use a more straightforward while loop instead of a do-while loop (2a0b9ae).
• I moved the input stream initialization code to a separate function (48d6fe1).
• I removed some unused code (92c0b56 and 96159d2) and fixed the code formatting (3adbd6c).
• I updated the project files (f6db53b).
• I modified the code to make it open multi-volume archives as whole archives only if the archive format is not BitFormat::Split (8e4d71c).

Please note that, even after all my changes, the code is incompatible with the next version of the library (which, at the moment, is on the develop branch).
Specifically:

• The code conflicts with the code changes I already introduced for the new version.
• Due to licensing issues, I cannot include the 7-zip's CMultiStream class.
• I'm already working on providing the same functionality for the next version, hopefully with a more generic approach that may include the recursive extraction of archives like .tar.gz without intermediate files.

So, if I merge this PR with the master branch, please consider that all these changes will be overwritten when the next version of the library is released (and the develop branch is merged with the master one).

[anywhereyang]

ok,you can do anything on my code, i will update your new version to my code