Implemented OICGetCurrentTime.
Consolidated the functionality for getting current time in
milli or micro seconds as multiple implementation of the
functionality currently exist in the stack.
Change-Id: I79b786ace762012305e487f820bb25f3e1599706
Signed-off-by: Shilpa Sodani <shilpa.a.sodani@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/3239
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Sachin Agrawal <sachin.agrawal@intel.com>