Implements OIC/OCF resource models for cloud.
1. Project restructured (API Naming, Callbacks and File location).
2. Add Message Queue implementation (IETF Proposal).
3. OAuth2 authcode, accesstoken, refreshtoken based authentication support.
4. Resource Directory implementation, follows latest OIC Spec.
Change-Id: I036a9d1d54b09dc995f36f8b93029fa149963744
Signed-off-by: Jee Hyeok Kim <jihyeok13.kim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9141
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>