Add postgress docker compose examples + Flyway Modularity Support (#2089)

* added postgress docker compose examples
* move mysql flyway into server (remove from hawkbit-repository-jpa-flyway)
* in starters is added posgress and sqlserver flyway support - see [Flyway Modularity](https://github.com/flyway/flyway/issues/3780)

_release_notes_

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

docker/docker-compose-monolith-with-simple-ui-postgres.yml

@@ -0,0 +1,32 @@
+#
+# Copyright (c) 2018 Bosch Software Innovations GmbH and others
+#
+# This program and the accompanying materials are made
+# available under the terms of the Eclipse Public License 2.0
+# which is available at https://www.eclipse.org/legal/epl-2.0/
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+version: '3'
+
+include:
+  - docker-compose-monolith-postgres.yml
+
+services:
+
+  # ---------------------
+  # HawkBit Simple UI service
+  # ---------------------
+  hawkbit-simple-ui:
+    image: "hawkbit/hawkbit-simple-ui:latest"
+    environment:
+      - 'SPRING_APPLICATION_JSON={"hawkbit.server.mgmtUrl": "http://hawkbit:8080"}'
+    restart: always
+    ports:
+      - 8088:8088
+    labels:
+      NAME: "hawkbit-simple-ui"
+
+volumes:
+  artifactrepo:
+    driver: local