add server to monorepo.

packages/server/src/decorators/eventDispatcher.ts

@@ -0,0 +1,11 @@
+import { EventDispatcher as EventDispatcherClass } from 'event-dispatch';
+import { Container } from 'typedi';
+
+export function EventDispatcher() {
+  return (object: any, propertyName: string, index?: number): void => {
+    const eventDispatcher = new EventDispatcherClass();
+    Container.registerHandler({ object, propertyName, index, value: () => eventDispatcher });
+  };
+}
+
+export { EventDispatcher as EventDispatcherInterface } from 'event-dispatch';