* raw-io.el: Require `pces'

* raw-io.el: Require `pces'
(binary-insert-file-contents): Alias to `insert-file-contents-as-binary'.
(binary-write-region): Alias to `write-region-as-binary'.
(binary-find-file-noselect): Alias to `find-file-noselect-as-binary'.
(binary-open-network-stream): Alias to `open-network-stream-as-binary'.
(binary-start-process): Use `as-binary-process'.
(binary-start-process-shell-command): Use `as-binary-process'.
(raw-text-insert-file-contents): Alias to `insert-file-contents-as-raw-text'.
(raw-message-write-region): Alias to `write-region-as-raw-text-CRLF'.