feat: Section and Sectioning#1695

dbirman wants to merge 1 commit intodevAllenNeuralDynamics/aind-data-schema:devfrom

1684-chunk-sections-and-handling-multi-slice-mapseq-sectionsAllenNeuralDynamics/aind-data-schema:1684-chunk-sections-and-handling-multi-slice-mapseq-sectionsCopy head branch name to clipboard