Add codesys2 module

[Seanstoppable]

This adds a new module to fingerprint codesys2 systems
This comes from an internal fork, where I am starting to contribute bits back to make upgrades easier.

How to Test

Example IP:

echo 109.72.22.5 | ./zgrab2 codesys2 --port 1200
INFO[0000] started grab at 2025-11-19T12:26:56-06:00
00h:00m:01s; 0 targets scanned; 0.00 targets/sec; 0.0% success rate
{"ip":"109.72.22.5","data":{"codesys2":{"status":"success","protocol":"codesys2","port":1200,"result":{"os_type":"Windows","os_version":"unknown CE version [runtime por","vendor":"3S-Smart Software Solutions"},"timestamp":"2025-11-19T12:26:56-06:00"}}}