fix(contour): fix intersect and subtract operations when one segment is fully inside another#2739

GhadeerAlbattarni wants to merge 8 commits into

cornerstonejs:maincornerstonejs/cornerstone3D:mainfrom

GhadeerAlbattarni:fix/contour-combine-empty-segmentGhadeerAlbattarni/cornerstone3D:fix/contour-combine-empty-segmentCopy head branch name to clipboard