Fix a logic to handle collection resource payload construction for vendor-specific properties in easy setup.
Fix a logic to handle collection resource payload construction for
vendor-specific properties in easy setup.

For vendor-specific properties in provisioning resource,
they should be included in 'rep' property.

Change-Id: I6644cab3aab43b29ebf5ce48d639a4a8ca9b8016
Signed-off-by: Jihun Ha <3b6954bd112a2585eced0b86af3c85401a826886@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/16245
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Uze Choi <3a26c91d8a4a3c9e246e43339f4782bb2483aece@samsung.com>

iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity