【Requset】add new preprocesser

[sdbds]

Mikubill/sd-webui-controlnet#2212

[Fannovel16]

@sdbds Added. The segmentation model for anime face is struggle with recognizing the background in many cases so I added SkyTNT's character segmentation model to remove the background beforehand, thus improves the accurency

[sdbds]

@sdbds Added. The segmentation model for anime face is struggle with recognizing the background in many cases so I added SkyTNT's character segmentation model to remove the background beforehand, thus improves the accurency

Thank you for your swift and excellent work!
Your genius idea really improves the model preprocessing graph to a great extent.
I will train another new version(V3) of the controlnet model based on your improvements, thanks again for your contribution!