unstructured

3e643c4c - feat(pptx): add pluggable PPTX Picture sub-partitioner (#2880)

feat(pptx): add pluggable PPTX Picture sub-partitioner (#2880) **Summary** Delegate partitioning of PPTX Picture (image, to a first approximation) shapes to a distinct sub-partitioner and allow the default picture sub-partitioner to be replaced at run-time by one of the user's choosing.