Windows: Introduce NameArray Reference Counts

Split the DirOpenReferenceCounts into those related to DirectoryCB
reference counting unrelated to the NameArrays and those that are
related to the NameArrays.  This helps track down the source of
overcounts and undercounts.

Reviewed-on: http://gerrit.openafs.org/8959
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit c753d398f2005c886932f20b49af15efc489a829)

Change-Id: If1ef8a39c5e37dda3d9cb8ae7685d46bf0004cda
Reviewed-on: http://gerrit.openafs.org/9034
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>