Support for instructpix2pix

[brycegoh]

Hi, does HiDiffusion support instructpix2pix (https://github.com/timothybrooks/instruct-pix2pix)? If not, are there plans to support it?

[iwr-redmond]

IIRC the original Pix2Pix uses its own architecture, but the SDXL-768 version may be compatible with HiDiffusion as it is a finetune of SDXL.