Windows: afslogon network provider debug registry value

Windows: afslogon network provider debug registry value

create a new TransarcAFSDaemon\NetworkProvider "Debug" value
to be used for activating the network provider debugging.
The overlapping use of TransarcAFSDaemon\Parameters "TraceOption"
is just too confusing.

Permit both methods to be used.

Reviewed-on: http://gerrit.openafs.org/5316
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit 3d4e111dd6c4201476e7447fdfaa27ed630032c5)

Change-Id: Ibc8b56d64aa843076b191afa42c4a3e93cf7a26f
Reviewed-on: http://gerrit.openafs.org/6802
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>