DoxyGen file update.

DoxyGen file update.

CPP APIs
  ../../include/OCException.h \

C APIs
  ../../c_common/ocrandom/include/ocrandom.h \
  ../../c_common/oic_malloc/include/oic_malloc.h \
  ../../c_common/oic_string/include/oic_string.h \
  ../../c_common/oic_time/include/oic_time.h \

Change-Id: If123688d3aaa050ece8b2cc994eed589ed111d26
Signed-off-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/15739
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: Uze Choi <uzchoi@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Dan Mihai <Daniel.Mihai@microsoft.com>
Reviewed-by: Phil Coval <philippe.coval@osg.samsung.com>