[LoRA] support kohya and xlabs loras for flux. (#9295)
* support kohya lora in flux.
* format
* support xlabs
* diffusion_model prefix.
* Apply suggestions from code review
Co-authored-by: apolinário <joaopaulo.passos@gmail.com>
* empty commit.
Co-authored-by: Leommm-byte <leom20031@gmail.com>
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Co-authored-by: apolinário <joaopaulo.passos@gmail.com>
Co-authored-by: Leommm-byte <leom20031@gmail.com>
