Send role request to switches when controller role changes if we
don't know yet if switch support the role request messages. This handles
the case where the switch connected to the controller before the
controller role had been set/enabled and thus we never sent out the
initial role request probe to the switch during the initial handshake.

Add support for __startswith parameters when querying for device information.  Some minor refactoring

Clean up serialization for REST APIs.  Get rid of the jackson converter module and just use annotations everywhere when appropriate.  There may still be a desire for something like the jackson converter module but it didn't really mesh with the plugin system, and the annotations work nicely.

[#28337615]

Controller now needs to listen for storage notifcation and it will
dispatch updates if the controller node IPs change.

We now have three different types of updates in the Controller.updates
queue ==> Refactored to use different update classes that implement a
common IUpdate interface instead of a several types and a switch
statemet.

Add unit test for Controller.updates queue

Retab that caused some unrelated chagnes but now now more tabs:
    flconext, addInfoProvider, removeInfoProviderm getControllerInfo

Retab also causes changes in flcontext: that's only indentation.

Needed to touch quite some files to refactoring: rename
IHARoleListener -> IHAListener

[#29035681]

Add some additional unit tests and change error status to null from NONE.  Some minor serializer cleanup

Add a debug REST API to get raw device entities.  Fix attachment point blocking code and make it appear in the REST output

Note: Switch stats don't update yet...not sure why...coming next.

topology viewer was dying if floodlight had not yet discovered
an IP address for every host.

Removing a couple placeholders unlikely to be filled in for the near future.  Would be great to get uptime but have no api for it right now.