Added support to ajax delegation action for addons (use addon:bundleName:action instead of bundle:action)
Added factory getModel support for addons.  Use $factory->getModel('addon.bundleName.modelName')
Added addon support for permissions (use $security->isGranted('addon:bundleName:type:permission')
Added support for additional content in the right panel via the CoreEvents::BUILD_CANVAS_CONTENT event.  At this time, only content from one source can be viewed per canvas. The settings menu will take either the main canvas (if nothing is injected) or left if main is occupied.
Updated MauticChatBundle to inject itself into right panel and various fixes to work as an addon.