Implementation of APIs for managing resource list and callback

Implementation of APIs for managing resource list and callback
implementation for attribute update automation feature.

1. Updated linux sample for testing the new APIs.
2. Implemented multi-resource creation and deletion APIs.
3. Added callback feature in automation module to notify the
   completion of automation to application.

Change-Id: I8eb460d2a3d54b6156bdff6d2851d38299a72020
Signed-off-by: G S Senthil Kumar <senthil.gs@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2136
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>