removed .DS_Store and __MACOSX, add missing pixel_som file

removed .DS_Store and __MACOSX

updated cell output (again x2)

updated cell output (again)

updated pixel output

updated cell output

updated cell json file

merge main

Remove example prefix from example cell clustering files (#9)

Change 'segmentation_dir' to 'segmentation/deepcell_output' in cell_clustering_params.json (#7)

removed .DS_Store and __MACOSX

dataset with cropped fov0, compressed channel tiffs also

seg_suffix_change (#4)

use_tiff_suffix (#3)

example_dataset_updates (#1)