CORE-5382 Updated permission for filesystem/directory/create.

Updated the permission format in the filesystem/directory/create endpoint response.
CORE-5382 Corrected directory-create documentation.
CORE-4811: modified the workflow renaming scheme so that it matches the renaming scheme for single-step apps
CORE-5397: Modified the /secured/filesystem/trash endpoint to do a hard delete.
Merge branch 'dev' into 1.8.7