Blob has overhead bytes

Hello,

I just noticed the Blob one retrieves by RarArchive.get() contains an overhead.

Split archive with 4 Parts:

Single Archive:

One can solve this by using
`blob = blob.slice(0, blob.size - (blob.size - val.sizePacked), blob.type);`
in the callback function, where 'val' is the RarEntry passed to RarArchive.get().

I personally think it is produced somewhere in your validaton and/or reading of the bytes from the archive, but I couldnt figure out where exactly, yet. :(

(If I do, I will inform you, but as for now, this workaround will do the job for me.)