replace combined stateUpdated signal with individual events

src/lib/eventsystem/EventManager.cpp

@@ -117,6 +117,12 @@ void EventManager::processEvents()
 	}
 }
 
+void EventManager::clearEvents()
+{
+	std::scoped_lock<std::mutex> lock(m_eventsMutex);
+	m_events.clear();
+}
+
 bool EventManager::hasEvents() const
 {
 	return !m_events.empty();