Add security payload type to a request/response

Add security payload type to a request/response

After removing the OCPayloadType from the payload, the stack has to
fill the appropriate payload type for security and non-security
payload type. Added PAYLOAD_TYPE_SECURITY as a payload type for
security resource request in HandleResourceWithEntityHandler
and response in HandleCAResponses.

Change-Id: I3007a1e79ad25b4e557ab15edb038a22cb9e85c3
Signed-off-by: Sakthivel Samidurai <sakthivel.samidurai@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2539
Reviewed-by: Erich Keane <erich.keane@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Patrick Lankswert <patrick.lankswert@intel.com>