526469: Move the Virgo Tooling to the new EPL v2.0 

- replaces Java source header with EPL 2.0 header
- replace MANIFES.MF and plugin.xml header with EPL 2.0 header
- Change about.html, license.html etc. etc. 
- Change branding
- Build against Oxygen
- Change feature to include some more plug-ins from runtime or Orbit
  to simplify installation for end user
451 files changed