Add dash license check workflow. (#4)

.github/workflows/dash-license-check.yml

@@ -0,0 +1,18 @@
+# This workflow will check for Maven projects if the licenses of all (transitive) dependencies are vetted.
+name: License vetting status check
+on:
+  push:
+    branches:
+      - 'master'
+  pull_request:
+    branches:
+      - 'master'
+  issue_comment:
+    types: [created]
+jobs:
+  call-license-check:
+    uses: eclipse/dash-licenses/.github/workflows/mavenLicenseCheck.yml@master
+    with:
+      projectId: technology.cbi
+    secrets:
+      gitlabAPIToken: ${{ secrets.GITLAB_API_TOKEN }}