feat: add more data to dossier

[jasongdove]

No description provided.

[gemini-code-assist]

Code Review

This pull request refactors the Dossier creation process by introducing a DossierBuilder and making several fields optional. It also implements Serialize for various media and hardware acceleration structures within the ffpipeline crate, including custom serialization for VAAPI capabilities to improve readability. Feedback focuses on simplifying the DossierBuilder logic by implementing Default for the MediaInfo struct and utilizing get_or_insert_with to reduce boilerplate in the builder methods.