Feature Request: Support more Compression Tools

The feature I request is that more compression tools are supported for the file I/O nodes.


Currently Knime only supports zip ang gzip compression, but not bzip2 or 7zip, so I cannot currently use my bzip2-compressed httpd-logs in knime.


One possible implementation would be to allow the user to define which binaries handle which kinds of files (by extension).


Thank you for consideration