Enhanced redirection

#1
Provide an option such that when a command output is redirected to a file in
a non-existent directory, the directory is automatically created. Logically
speaking this would be an extension of the /MD option of the COPY, MOVE and
RENAME commands, and could provide major simplification in many batch files
by eliminating the need to test for the existence of the target directory.
This enable/disable option should be under the control of .INI directive,
and its state should be dynamically modifiable via the OPTION command.
--
Steve