feat(nodes): inpainting workflow support nodes

[psychedelicious]

Summary

A collection of nodes to support inpainting segmentation maps in workflows.

Related Issues / Discussions

n/a

QA Instructions

Try this workflow. The linear view is set up with everything you need to test it.
Inpaint Segmentation Map.json

• Add an equal number of segmentation maps and source images. I'll attach 3x segmentation maps and 1x source image. You can add the source image to the batch multiple times.
• Select the target color so that it matches the red blob.
• Add a prompt for the inpainted region.
• Select an SDXL model.
• Create and select a board for the runs.

3x faux-segmentation maps

1x source image

Merge Plan

n/a

Checklist

• The PR has a short but descriptive title, suitable for a changelog