VOL-4925 - Build and release components.

*.groovy
*.yaml
--------
  o Cosmetic edits to force a jenkins job, simple submission of one script not triggering deployment.
  o Add copyright header in groovy scripts where needed.
  o Added trailing comment "// [EOF]" in yaml files.

Change-Id: I978fbd3030c701f8ddc77e5b9140378b9bda909b
diff --git a/vars/installVoltctl.groovy b/vars/installVoltctl.groovy
index efeed49..e8b08d4 100644
--- a/vars/installVoltctl.groovy
+++ b/vars/installVoltctl.groovy
@@ -1,5 +1,19 @@
 #!/usr/bin/env groovy
 // -----------------------------------------------------------------------
+// Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// -----------------------------------------------------------------------
 // Install the voltctl command by branch name "voltha-xx"
 // -----------------------------------------------------------------------