Operation Request: Snappy Decompression

**Is your feature request related to a problem? Please describe.**
I encountered some blobs compressed with the Snappy algorithm in some binary file.
There isn't currently a module in CyberChef that can decompress those.

**Describe the solution you'd like**
A new module for Snappy decompression.
This module shouldn't need parameters to operate. Just an input bytes stream.
Compression could be nice for completeness but I have no specific use for it. I also assume it's harder to implement.

**Additional context**
Snappy is an encryption algorithm created by Google.
The "high leve" description (which is pretty much enough to implement a decoder) can be found here:
https://github.com/google/snappy/blob/main/format_description.txt
There seem to be some variations of snappy: "framing" and "hadoop".
I think the "framing" one probably contains a magic.
The variation I'm particular interested does not start with a magic, it's the "original"(?) one that starts with a VarInt representing the size of the decompressed file.

**More Sources**
Official info, and C++ implementation, is available here:
https://github.com/google/snappy
3rd part implementations are listed here:
http://google.github.io/snappy/

Thank you.

No repository file, entry point, or test is named. Start by reading Snappy's format_description.txt and compare the original, framing, and Hadoop variants before locating CyberChef's existing compression operations. Done means a parameterless operation decompresses the requested raw Snappy byte stream, with tests covering its expected input and output.

Written by the indexing model from the issue text.