feat: postponed evaluation of annotations

[Tohrusky]

Summary by Sourcery

Enhancements:

• Postpone the evaluation of annotations in havsfunc, mvsfunc, nnedi3_resample, xvs, and zvs.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request shifts the way type annotations are handled by postponing their evaluation. The changes are implemented by adding the relevant future import (i.e., from future import annotations) to several core modules, ensuring that the type hints are evaluated only when needed rather than at module load time. This change improves forward reference handling and can lead to performance improvements by deferring potential expensive operations during module initialization.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Implemented postponed evaluation of annotations across multiple modules	Inserted the future import statement to delay type annotation evaluation Updated modules to defer processing of type hints until runtime Standardized annotation handling across the affected files	mbfunc/havsfunc/havsfunc.py mbfunc/mvsfunc/mvsfunc.py mbfunc/nnedi3_resample/nnedi3_resample.py mbfunc/xvs/xvs.py mbfunc/zvs/zvs.py

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[sourcery-ai]

Hey @Tohrusky - I've reviewed your changes - here's some feedback:

Overall Comments:

• The diff lacks context, so please include a more detailed explanation or inline comments describing how postponed evaluation of annotations is implemented.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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