[FX acc]Add fx_glow support for multi outputs (#52527)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52527
Add e2e support for multiple outputs.
Test Plan: `buck test glow/fb/fx/fx_glow:test_fx_glow -- test_fx_glow_binding_with_multiple_outputs`
Reviewed By: gcatron
Differential Revision: D26555520
fbshipit-source-id: f3ccd61a0c2429d4a5f511c403fa6e782012e21e
