Changes

Bug 582480 Generate dependency information / SBOM

- add dash-licenses check/report as part of the snapshot build
- use cyclonedx-maven-plugin to generate cyclonedx SBOM (config copied
from the dash project)
  - exclude explicitly test modules
  - add license metadata to parent pom

Change-Id: Ia4d7a8befd1d95be4d7216f49bd6c8326c5077e8
Signed-off-by: Krum Tsvetkov <krum.tsvetkov@sap.com>