Adding C++ API for MOT

Adding C++ API for MOT

Patch #11 Fix Review comments
          Changed MACRO _ENABLE_MULTIPLE_OWNER_ to MULTIPLE_OWNER and this
          change propagated upto C-API's.

Change-Id: I55305d5cf9210b25c68f0eaf04c1362111735979
Signed-off-by: saurabh.s9 <saurabh.s9@samsung.com>
Signed-off-by: Sandeep Sharma <sandeep.s9@samsung.com>
Signed-off-by: Randeep Singh <randeep.s@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/14221
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Chul Lee <chuls.lee@samsung.com>
Signed-off-by: saurabh.s9 <saurabh.s9@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/15145