Execute bundle activation in separate thread

Execute bundle activation in separate thread

This change executes the bundle activation in a separate thread. The calling thread waits
a defined time for the bundle activation to be completed before continuing the program flow.

Change-Id: I07dbb2e7b87658f5a0b1de827b458c2d55c5d16c
Signed-off-by: Markus Jung <markus.jung@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2669
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>