LMS-855 add two DSS configurations and start them up

integration-tests/run.sh

integration-tests/templates/data/incoming-a/.gitignore

...ion-tests/templates/datastore_server1/datastore_server.sh

...on-tests/templates/datastore_server1/etc/openBIS.keystore

...-tests/templates/datastore_server1/etc/service.properties

integration-tests/templates/datastore_server1/shutdown.sh

...ion-tests/templates/datastore_server2/datastore_server.sh

...on-tests/templates/datastore_server2/etc/openBIS.keystore

...-tests/templates/datastore_server2/etc/service.properties

integration-tests/templates/datastore_server2/shutdown.sh