Add resample option to AudioEffector

[mthrok]

Currently, AudioEffector always resample to the original sample rate. It is more flexible to allow overriding this to any sample rate.

[pytorch-bot]

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[facebook-github-bot]

@mthrok merged this pull request in 406e9c8.

[github-actions]

Hey @mthrok.
You merged this PR, but labels were not properly added. Please add a primary and secondary label (See https://github.com/pytorch/audio/blob/main/.github/process_commit.py).

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