Fixed InProcClientWrapper's option parameter to OCDoResource

Fixed InProcClientWrapper's option parameter to OCDoResource

InProcClientWrapper was calling OCDoResource with the option
parameter set to a valid value despite the numOptions being 0.
This commit ensures that it will send a nullptr in that event,
preventing confusion during debugging in the future.

Change-Id: Ided75e1c90a971ea205e9e04bf170a5144e8206d
Signed-off-by: Erich Keane <erich.keane@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/485
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Sudarshan Prasad <sudarshan.prasad@intel.com>
Reviewed-by: Sashi Penta <sashi.kumar.penta@intel.com>