Windows: Explorer Shell extensions

Windows: Explorer Shell extensions

This patchset implements a broad range of improvements to
the explorer shell.  There is still a significant amount of
work to be done.

 * Remove the 'cut' and 'delete' options from the
   context menu if the selected object is a symlink
   or mount point.  This is performed in a language
   neutral manner.

 * Add AFS Property page to the property sheet

 * Add AFS Volume Property page

 * Add AFS ACL Property page

 * force the linker to add the common-controls V6 manifest and
   define ISOLATION_AWARE_ENABLED to make property sheets
   work for the shell extension dll

 * Fix the InfoTip handler.  Display symlink and mount point
   target strings

Stefan Kueng was assisted by Jeffrey Altman.

Change-Id: I6b7c4506026270a5408d90cdc5358864e3fb44c3
Reviewed-on: http://gerrit.openafs.org/5430
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>