Allow selective file skipping with zipArchiveShouldUnzip.. delegate c…

[mallexxx]

Providing file path in delegate call;
Allow skipping a file during unzip without breaking the whole process (cancellation with *stop=true)
renamed canceled to cancelled

[willson-chen]

Thanks for your PR.
But we can't change the signatures of unzipFileAtPath, we need to keep a compatibility layer, which I can easily write eventually.
At the same time if you could add some testcases will be great!