dispatch event intergration

apps/LoopThroughWithOpenGLCompositing/runtime/events/RuntimeEventDispatcher.h

@@ -13,6 +13,7 @@ struct RuntimeEventDispatchResult
 	std::size_t dispatchedEvents = 0;
 	std::size_t handlerInvocations = 0;
 	std::size_t handlerFailures = 0;
+	double dispatchDurationMilliseconds = 0.0;
 };
 
 class RuntimeEventDispatcher
@@ -56,6 +57,7 @@ public:
 
 	RuntimeEventDispatchResult DispatchPending(std::size_t maxEvents = 0)
 	{
+		const auto startedAt = std::chrono::steady_clock::now();
 		RuntimeEventDispatchResult result;
 		std::vector<RuntimeEvent> events = mQueue.Drain(maxEvents);
 		result.dispatchedEvents = events.size();
@@ -78,6 +80,8 @@ public:
 			}
 		}
 
+		result.dispatchDurationMilliseconds =
+			std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - startedAt).count();
 		return result;
 	}