[rt.cpan.org #78030] symlinks resolution

    fixed typo in _extract_special_file_as_plain_file : clone $entry rather
    than $orig
    add _symlink_resolver helper

    note: works now with "in memory" but ptar command won't

    typo + iter workarround + tests

    bad practice : there where no tests for the issue
    fixe typo
    hack on a workarroud for iter( ) way : very slow but working

    add RESOLVE_LINK tunning

    So we could choose between speed, memory or none (previous behaviour :
    failed).

    make tests works on os X

    cleanup extracted files between tests, so real symlinks could works on
    os x (was failed with iter because link already exists)
    test for extracted link file size which was to 0 with $entry/$orig for
    clone()

    typo

    argh!

Signed-off-by: Chris 'BinGOs' Williams <chris@bingosnet.co.uk>
Update CHANGES and bump to version 1.93_01