RD Device Presence features in base layer

RD Device Presence features in base layer

- make consistent with the revised RD spec.
- add the RD Device Presence API in base layer.
  1. subscribe DevicePresence to resource-directory

Change-Id: Ic6635474efdd5797f41e9d8dcdb867747c93f9eb
Signed-off-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9351
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: jihwan seo <jihwan.seo@samsung.com>
Reviewed-by: Ashok Babu Channa <ashok.channa@samsung.com>