Add pipeline_stable_diffusion_3_inpaint.py for SD3 Inference (#8709)
* Add pipeline_stable_diffusion_3_inpaint
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Co-authored-by: Xu Cao <xucao2@jrehg-work-01.cs.illinois.edu>
Co-authored-by: IrohXu <irohcao@gmail.com>
Co-authored-by: YiYi Xu <yixu310@gmail.com>