add Instant id sdxl image2image pipeline (#7507)
* initial commit - instantid img2img
* adapting to img2img
* change add_time_ids
* change add_time_ids
* WIP changes
* add strength to timesteps
* check insightface import
* style
* check insightface import changed to warning
* check insightface import changed to warning
* style
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Co-authored-by: apolinário <joaopaulo.passos@gmail.com>
