Automatically compress input plaintext

[kimci86]

It would be convenient to pass uncompressed data and let bkcrack compress it.
It could try different compression levels and check if size matches. It won't be exhaustive (i.e. trying every compression implementation and parameters), but using zlib deflate implementation would be a good start.
Idea coming from #81.

[0xVavaldi]

If you're still interested in making this a core-feature. This was implemented in part by winxp https://github.com/winxp5421/brute_zip

[kimci86]

Thank you for sharing. I still want to implement this someday. I will eventually get back to it.