[WIP] Add support for %llu and %llz in Dmod_SnPrintf

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Dodać wsparcie dla %llu w Dmod_SnPrintf</issue_title>
<issue_description>Tak jak w tytule - brakuje wsparcia dla %llu oraz %llz (tego dla size_t)</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Dodać wsparcie dla %llu w Dmod_SnPrintf #194

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