Move configuration parsing into libcmd
Rework the API for directly parsing configuration files and move it
out of util/ and into libcmd, where we can actually make use of it.
This is a raw API - it provides direct access to the parser. The
eventual intent is that this will predominantly be contained within
libcmd itself, which will then wrap this with the more general purpose
Option functions
Change-Id: I9f4a9c373c4123023120f69e595068ead6160507
Reviewed-on: http://gerrit.openafs.org/7132
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>