KSampler's dpmpp_2m now returns attention, and added nodes for loading, and saving attention. Modified the PrintNode to print attention. Still have to add it to other samplers.
See _for_testing/unclip in the UI for the new nodes.
unCLIPCheckpointLoader is used to load them.
unCLIPConditioning is used to add the image cond and takes as input a
CLIPVisionEncode output which has been moved to the conditioning section.