[ONNX] Enable attribute type checking in onnx dispatcher (#105104)
The dipatcher didn't check attribute dtype, as AttributeProto is a totally different system from InputProto in ONNX. This PR introduces the mapping table for AttributeProto type to python type. And further utilize it in opschema matching.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/105104
Approved by: https://github.com/thiagocrepaldi
