add method content_copy_name help method to generate checksum for files in filefield add ContentCopyStorage class for filefield storage
add method content_copy_name help method to generate checksum for files in filefield
add ContentCopyStorage class for filefield storage

jayoshih/content-curation,fle-internal/content-curation,DXCanas/content-curation,DXCanas/content-curation,DXCanas/content-curation,jonboiser/content-curation,jayoshih/content-curation,jonboiser/content-curation,DXCanas/content-curation,jayoshih/content-curation,jonboiser/content-curation,jayoshih/content-curation,jonboiser/content-curation,aronasorman/content-curation,aronasorman/content-curation,fle-internal/content-curation,fle-internal/content-curation,fle-internal/content-curation,aronasorman/content-curation