Windows: DirOpenReferenceCount reorganizing completed

This patchset completes the reorganizing of the DirOpenReferenceCount
handling.  Now that every AFSCcb is given a refCount in AFSInitCcb()
which is released in AFSRemoveCcb() it is possible to simplify some
of the logic surrounding DirOpenReferenceCount handling across
the AFSCommonCreate -> XXX -> AFSLocateNameEntry -> {MountPoint, Symlink}
call sequences.

Wherever possible releasing of DirOpenReferenceCounts occur in a
functions try_exit block.  AFSCommonCreate() uses the new variables
bReleaseDir and bReleaseParentDir to track whether these refcounts
need to be released.  Additional comments document the decision
making.

There was at least one code path in AFSLocateNameEntry() where
the DirOpenReferenceCount could be dropped when it should not have
been. (pExistingDirNode == pDirNode).

Reviewed-on: http://gerrit.openafs.org/8860
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 c0627f8620594191ce5901937175c5f1a93daec2)

Change-Id: I4d9435ae474e78843421132d71b00908904cfb7a
Reviewed-on: http://gerrit.openafs.org/9009
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Windows: RDR FILE Processing Tracing

Additional/improved trace messaging for name not found and
path not found errors.

Reviewed-on: http://gerrit.openafs.org/8861
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 1e6ec171caced9b7b3dd78c4931d7047bad07e1f)

Change-Id: I6b9ddd97828b0559864224236a907bfca1ba47ff
Reviewed-on: http://gerrit.openafs.org/9010
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Windows: AFSOpenRoot obtain VolumeRoot OpenReferenceCount earlier

In AFSOpenRoot obtain the VolumeRoot reference count before performing
any operations that require use of the VolumeRoot.  If the operations
fail, release the reference count.

Reviewed-on: http://gerrit.openafs.org/8862
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit af3f627e676c5b849b721c75a84a88fc6e54ec52)

Change-Id: I6d7522a5d64ae5d6aadd8655e3af10dc2ec46e1d
Reviewed-on: http://gerrit.openafs.org/9011
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>