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7b2407f4 - add support for pre-calculated prompt embeds to Stable Diffusion ONNX pipelines (#2597)

add support for pre-calculated prompt embeds to Stable Diffusion ONNX pipelines (#2597) * add support for prompt embeds to SD ONNX pipeline * fix up the pipeline copies * add prompt embeds param to other ONNX pipelines * fix up prompt embeds param for SD upscaling ONNX pipeline * add missing type annotations to ONNX pipes