miurahr/py7zr: Show progress and dereference options

Added Support dereference option of SevenZipFile class. (#131) If dereference is False, add symbolic and hard links to the archive. If it is True, add the content of the target files to the archive. This has no effect on systems that do not support symbolic links. Introduce progress callback mechanism (#130) Changed CLI: add --verbose option for extraction win32: update win32compat Fixed Fix archiveinfo() for 7zAES archives Release variables when close() (#129