Move metadata util to extension/llm/runner.

[shoumikhin]

Summary: Let's keep only basic functionality under extension/module.

Differential Revision: D61108863

[pytorch-bot]

🔗 Helpful Links

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❌ 2 New Failures

As of commit deaa0b8 with merge base 99e1ae1 ():

NEW FAILURES - The following jobs have failed:

• Android / test-llama-app (bpe) / mobile-job (android) (gh)
  Could not assume role with user credentials: User: arn:aws:sts::308535385114:assumed-role/gh-ci-github-action-runners-runner-role/i-08008cc3f6814dad8 is not authorized to perform: sts:TagSession on resource: arn:aws:iam::308535385114:role/gha_workflow_mobile_job
• Apple / upload-frameworks-ios (gh)
  Credentials could not be loaded, please check your action inputs: Could not load credentials from any providers

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This pull request was exported from Phabricator. Differential Revision: D61108863

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This pull request was exported from Phabricator. Differential Revision: D61108863