fix(core): update

ts/smartuniverse.classes.client.universecache.ts

@@ -0,0 +1,11 @@
+import * as plugins from './smartuniverse.plugins';
+import { ClientUniverseChannel } from './smartuniverse.classes.client.universechannel';
+
+/**
+ * a cache for clients
+ * keeps track of which messages have already been received
+ * good for deduplication in mesh environments
+ */
+export class ClientUniverseCache {
+  public channelMap = new plugins.lik.ObjectMap<ClientUniverseChannel>();
+}