ns for fx: add allowlist for ops with same signature across dtypes (#55154)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55154
Adds functionality to NS to allow matching nodes which have the
same signature across dtypes. For now, only the skeleton is added,
we can fill out the rest of the ops later. This is to unblock
the work to change `cat` to have the same signature for fp32 and int8,
and keep the testing we have for `cat` in NS.
For context, the main reason we are not matching nodes with equal types,
for now, is user defined types for which we do not know the signature.
For now, the design is strictly allowlist of everything. In the future,
we may adjust the design to safely match user defined types.
Test Plan:
```
python test/test_quantization.py TestFXNumericSuiteCoreAPIs.test_ops_with_same_fp32_and_int8_signature
python test/test_quantization.py TestFXGraphMatcher.test_nodes_with_equal_types_do_not_get_matched
```
Imported from OSS
Reviewed By: raghuramank100
Differential Revision: D27504624
fbshipit-source-id: 4f8eb4f3258caf6f99aa373ca7ba516ebbcf4779
