[CORD-2054] Adding vspgwu service

Change-Id: I93e009c79a5f4f0e16b52db0c3e5d4dc6f20e3ac
tree: 1723d23c58096b2ee94ce492fee45b318d030270
  1. .gitreview
  2. Jenkinsfile
  3. default.xml
  4. manifest.dtd
  5. validate_manifest.sh