Add apachectl script for controlling Apache in a way similar to ndc.

Written from scratch after scanning ndc.

PR:
Obtained from:
Submitted by:
Reviewed by:	Dean Gaudet, Randy Terbush, Paul Sutton, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79148 13f79535-47bb-0310-9956-ffa450edef68