Composer WIP
Merge branch 'master' of https://github.com/Blacklite/Multitenancy.git
ConfigurationDescriptor -> Composer  (to many configurations!)
Finished work on tenant events and added a test case in ui project.
Added example composer, for application events.  This is a tenant aware "orchestrator", that basically allows all tenant events to be broadcast to a application channel, for consumption from there.
This could be useful for logging those events to a service, or monitoring how things are operating in the system.