Add owlv2 fast processor
Author: lmarshall12
Pull request: yes

# What does this PR do?
Adds OWLv2 Fast image processor as identified in issue #36978 
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Comments:
@yonigozlan appreciate there is already a PR linked for this processor on the issue but it appears to be stale

Hey @lmarshall12 ! Thanks for opening this PR! I'll have a look this week

@yonigozlan any updates on this?

**[For maintainers]** Suggested jobs to run (before merge)

run-slow: auto, owlv2

The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_39041). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.