Wrong path separator used while reading the squashfs?

[HsuJv]

Hi there,

Thanks for your nifty library and it's been a real help for me.

But I've got something wrong when reading the squashfs on Windows hosts.

After some investigation, it seems line 55 here

https://github.com/CalebQ42/squashfs/blob/54d193a3df985eb6fb4826b1689d4495887946eb/reader_fs.go#L43-L60

shall be altered to

	split := strings.Split(name, string(os.PathSeparator))

When running on Windows, a path separator will be modified to \ after filepath.Clean even if it was passed with / So I think it's better to split its path by os specified separator rather than hardcoding /

What do you think?

BRs.