Windows: Trace DirectoryCB allocations

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

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>
(cherry picked from commit 4811fd8844d1294ee37c14bac7cfae776d09c9b4)

Change-Id: I55947685ec9634bc504faf436221656ca03abbfc
Reviewed-on: http://gerrit.openafs.org/9035
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Windows: AFSProcessCreate drop DirOpenRefCount on exit

AFSProcessCreate() must not maintain its DirOpenReferenceCount
when bFileCreated is true because the AFSCcb maintains its own
count and the one obtained by AFSProcessCreate() will only be
leaked.

Reviewed-on: http://gerrit.openafs.org/8961
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 391bdbf9ace271ef41d6c73031d172cdad802f79)

Change-Id: I21fc51484a629df2393661b335338c1643002897
Reviewed-on: http://gerrit.openafs.org/9036
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>