add events to server, add ability to close client and server

src/oscClient.ts

@@ -39,4 +39,12 @@ export class OSCClient {
     const encoded = toBuffer(address, [arg]);
     this.sendPacket(encoded);
   }
+
+  /**
+   * Close the connection
+   */
+
+  public close(): void {
+    this.socket.close();
+  }
 }