WS-969: Added healthchecks for the workflow and notification containers in the swarm...

docker-compose.local.yml

docker-compose.yml

services/capability/Dockerfile

...ices/capability/bin/start-capability-with-healthchecks.sh

services/notification/notification/routes.py

services/notification/notification/views/notify.py

services/notification/test/test_notification_server.py

services/workflow/workflow/server.py