[QDQ] Add shared NodeUnit class (#10052)
* initial change
* move more function to node_unit
* Remove commented code
* Minor update
* Update onnxruntime/core/providers/nnapi/nnapi_builtin/builders/op_builder.cc
Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
* address CR comments
Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>