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.

Change-Id: Ie3c6f15394fe116761e32ed4d7756a4bf6a5549f
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>
Windows: Trace DirectoryCB allocations

Add a trace subsystem for tracking Directory Entry allocations
and deallocations to assist with debugging.

Change-Id: Ic5f0361bf10752f50d433d3e9f4792b32bec8de1
Reviewed-on: http://gerrit.openafs.org/8960
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>