The file(COPY_FILE) sub-command is closely related to the
file(COPY) sub-command. Move the former to just before the
latter for improved continuity. The file(RENAME) sub-command is
also somewhat related to file(COPY_FILE), so it was also moved to
keep it just before file(COPY_FILE).

The file(MAKE_DIRECTORY) sub-command was also moved to just
before the file(REMOVE) and file(REMOVE_RECURSE) sub-commands
to keep them together and improve logical flow of operations.