Generalize quantized input wrapper

[ethansfng]

Summary: Adds dequant nodes to support int8 input if specified

Differential Revision: D88810482

[pytorch-bot]

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✅ You can merge normally! (1 Unrelated Failure)

As of commit f044d21 with merge base 3553f0a ():

UNSTABLE - The following job is marked as unstable, possibly due to flakiness on trunk:

• pull / android / run-emulator (gh) (#16137)
  Timeout waiting for emulator to boot.

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[meta-codesync]

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