Implement undo functionality enhancements for SAM2 points tool#1356

mcmonkey4eva merged 2 commits into

mcmonkeyprojects:mastermcmonkeyprojects/SwarmUI:masterfrom

GlenCarpenter:bugfix-sam2-undo-redoGlenCarpenter/SwarmUI:bugfix-sam2-undo-redoCopy head branch name to clipboard