Feature request: SOSEMANUK Cipher

**Is your feature request related to a problem? Please describe.**
The cipher SOSEMANUK is missing

**Describe the solution you'd like**
Please consider adding support for these ciphers

**Describe alternatives you've considered**
Using other tools or creating custom one off decoders is the current workaround

**Additional context**
SOSEMANUK: https://www.ecrypt.eu.org/stream/e2-sosemanuk.html

Start by reading the SOSEMANUK specification linked in the issue and then inspect CyberChef's existing cipher implementations to determine the appropriate entry points and test locations. Done means CyberChef can encode and decode SOSEMANUK correctly, with coverage for the supported cipher behavior.

Written by the indexing model from the issue text.