Multiple Dockge instances (#200)

common/agent-socket.ts

@@ -0,0 +1,15 @@
+export class AgentSocket {
+
+    eventList : Map<string, (...args : unknown[]) => void> = new Map();
+
+    on(event : string, callback : (...args : unknown[]) => void) {
+        this.eventList.set(event, callback);
+    }
+
+    call(eventName : string, ...args : unknown[]) {
+        const callback = this.eventList.get(eventName);
+        if (callback) {
+            callback(...args);
+        }
+    }
+}