Allow mod_auth_digest to work with sub-requests with different methods than

the original request.

PR: 25040
Submitted by:	Josh Dady <jpd@indecisive.com>
Reviewed by:	Justin Erenkrantz, Sander Striker (concept)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@102447 13f79535-47bb-0310-9956-ffa450edef68