Moved away from shared pointers in event handlers - didn't make sense to expose the event management implementation to handlers.

Also some other bits of tidying.

src/DebugServers/DebugServer.hpp

@@ -59,7 +59,7 @@ namespace Bloom::DebugServers
          *
          * @param event
          */
-        void onShutdownDebugServerEvent(Events::EventPointer<Events::ShutdownDebugServer> event);
+        void onShutdownDebugServerEvent(Events::EventRef<Events::ShutdownDebugServer> event);
 
     protected:
         /**