Deliver new version of CPS(NCMP) and DMI plugin

Subtasks

1. CPS Release Process: https://wiki.onap.org/display/DW/CPS+Release+Process
   (incl. check release notes)
2. CPS Identify helm chart version number to use for the release
   1. Release version CPS 3.4.9 (New Delhi RC)
   2. On master we continue with 3.5.0-SNAPSHOT
3. CPS Create release branch (without space: newdelhi)
4. DMI Release Process: https://wiki.onap.org/display/DW/CPS+Release+Process
   (incl. check release notes)
5. DMI Identify helm chart version number to use for the release
   1. Release version DMI_Plugin 1.5.0
   2. On master we continue with 1.6.0-SNAPSHOT
6. DMI Create release branch (without space: newdelhi)
7. Complete key updates page: https://wiki.onap.org/display/DW/New+Delhi+Release+Key+Updates