Fix for crash in InProcClientWrapper destructor.

Fix for crash in InProcClientWrapper destructor.

InProcClientWrapper::stop() throws an exception when stack
is already stopped. Not catching this exception would terminate
application.

Change-Id: I50bb6befb716049da275c16a4fdbf96437c2ad03
Signed-off-by: Harry <h.marappa@samsung.com>
Signed-off-by: jihwan.seo <jihwan.seo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/15169
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-by: Dan Mihai <Daniel.Mihai@microsoft.com>