added working vk event handlers

src/service/vk/handlers/MessageNewHandler.ts

@@ -0,0 +1,12 @@
+import { VkEventHandler } from "./types";
+import { ContextDefaultState, MessageContext } from "vk-io";
+import { NextMiddleware } from "middleware-io";
+
+export class MessageNewHandler extends VkEventHandler<
+  MessageContext<ContextDefaultState>
+> {
+  public execute = async (context, next: NextMiddleware) => {
+    console.log("received message!");
+    await next();
+  };
+}