Drop pgp related temp entries
Remove obsolete controllers
POC: completely remove old plugin manager and related classes
Example of nexus plugin without nexus-plugin-bundle-maven-plugin
Eliminate nexus-plugin packaging
Remove nexus-plugin support code
Add basic plugin bundle configuration
Fix build issues
Fix project assembly, get basic UI working
Fixup metadata
Get legacy ITs up and running (had to mess with embed instructions, plan to remove all embedding/require-bundle once ITs are happy)