UPSTREAM PR #1217: feat(server): add generation metadata to png images#28

loci-dev wants to merge 2 commits intomasterauroralabs-loci/stable-diffusion.cpp:masterfrom

upstream-PR1217-branch_wbruna-sd_server_png_metadataauroralabs-loci/stable-diffusion.cpp:upstream-PR1217-branch_wbruna-sd_server_png_metadataCopy head branch name to clipboard