[ao] fixing public v private for quantization_types (#86031)
Summary: the main problem with this was that the different objects
defined simply as 'Any' should theoretically be public but making them
public either A) results in an error about the module being 'typing'
rather than whatever module it should be or B) you set the module
manually, thereby changing the module for the original 'Any' class.
note: QuantizeHandler has a similar issue where its simply defined as
'Any'
Pattern was defined in multiple places which was causing issues so i just moved it to a single
place given the note at the top of quantization_types.py indicating
these definitions should be moved to utils at some point anyway.
Finally i changed any references to these objects to point at the
correct locations. Note: i didn't see any fb internal references to
NodePattern or QuantizerCls that would cause issues.
Test Plan: python test/test_public_bindings.py
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Pull Request resolved: https://github.com/pytorch/pytorch/pull/86031
Approved by: https://github.com/jerryzh168
