unet fusion for stable diffusion webui (#19227)
### Description
Update unet fusion for [stable diffusion webui
extension](https://github.com/tianleiwu/Stable-Diffusion-WebUI-OnnxRuntime):
(1) Update fusion pattern to support fp16 unet model.
(2) Add progress bar
(3) Use a cached map to speed up dtype or shape lookup in shape
inference result.
### Motivation and Context
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