PeaZip with force single directory level extract

This version of PeaZip allows you to right click on any archive → PeaZip → "Extract here (new folder)" and be sure that only one subdirectory will be created, with the archive's content contained inside it.

Original extract behaviour:

Uniform subdirectory extract:

This is useful because there are two main ways that archives are packaged:

1. Archive root contains all files
2. Archive root contains single directory (named after the archive), with all files contained inside.

The second type of archive results in an intermediate directory being created when using "Extract here (new folder)".

E.g. With C:\PeaZip as the current directory.

ArchiveType1.zip contains:

File1.txt

Then "Extract here (new folder)" will result in the following structure:

C:\
└ PeaZip\
  ├ ArchiveType1\
  │ └ File1.txt
  └  Archive.zip

ArchiveType2.zip contains:

ArchiveType2\
└ File1.txt

Then "Extract here (new folder)" will result in the following structure:

C:\
└ PeaZip\
  ├ ArchiveType2\
  │ └ ArchiveType2\     <- unnecessary intermediate directory
  │   └ File1.txt
  └  ArchiveType2.zip

This intermedate directory is deleted with its contents being moved up a level, resulting in the same structure as for ArchiveType1.