Make texture projection work with img2img models

[Dekker3D]

Is your feature request related to a problem? Please describe.
Right now, texture projection only works with depth2img models.

Describe the solution you'd like
An img2img model can do some pretty decent work for texture projection, if you give it an input image with unshaded basic textures... if no such textures are available, a cavity map or ambient occlusion texture will work well if you bump up the denoising strength a fair bit.

Describe alternatives you've considered
I'm currently doing this manually in Auto1111.

Additional context
This should probably be read in the context of #2149, which is the other half of my current workflow.

[patrickvonplaten]

Hey @Dekker3D, can you code up an example that explains your workflow maybe? :-)

[Dekker3D]

Sorry! This issue was meant for https://github.com/carson-katri/dream-textures, I messed up.