Keep original name during fusion (#20097)
### Keep original name during fusion
This could be helpful to know where the fused node coming from, I feel
this is very useful when debugging the execution order issues between
different transformer layers.
For example:
- A node named
`/_original_module/model/layers.1/self_attn/MatMul/MatmulTransposeFusion//MatMulScaleFusion/`
goes through two fusion paths in the 1st transformer layer - e.g.
`MatmulTransposeFusion` and `MatMulScaleFusion`.
-
`/_original_module/model/layers.2/post_attention_layernorm/Mul_1/SimplifiedLayerNormFusion/`
node is a fused node by `SimplifiedLayerNormFusion`.
### Motivation and Context
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