* archive_extract: remove unneeded architure-specific files
these are:
* `perllocal.pod` (in archlib): this is a documentation file intended to list all locally installed packages, but the file is shared by all packages and is therefore useless.
* `.packlist` (in vendorarch): this is package specific and lists all other installed files. It is probably used for supporting `make uninstall` which isn't needed for packaged software.
* archive_extract: use `make pure_install` to deal with perllocal.pod, add tests