[fx][normalize] Allow for args to be left as args (#55995)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55995
Normalization is kind of broken currently. But making default arguments visible still appears to work, and is nice functionality to still be able to rely on/use. Adds an option to `NormalizeArgs`'s `__init__` called `normalize_to_only_use_kwargs` which defaults to true, which if set to false will keep using the same signature as provided, but additionally set kwargs in kwargs.
Test Plan: Added test to `test_fx_experimental`.
Reviewed By: 842974287
Differential Revision: D27759448
fbshipit-source-id: 620061fcf46d8549ac70b62aede8b6740aee3778
