[Model] Broadcast Ovis2 implementation to fit Ovis1.6

[Isotr0py]

• Broadcast Ovis2 implementation to fit Ovis1.5 and Ovis1.6

Update:
Ovis1.5's image processing and ViT implementation are quite different from Ovis2 and Ovis1.6, it needs much more extra effort to refactor existing ViT and processor. I decided to leave it to be done in a following PR to avoid blocking Ovis1.6 landing.

FIX #8972
FIX #9638

[github-actions]

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