Fix event import

Fixes obs-websocket-community-projects#229

Author: duncte123

lib/Socket.js

@@ -1,5 +1,5 @@
 const WebSocket = require('isomorphic-ws');
-const EventEmitter = require('events');
+const {EventEmitter} = require('events');
 const hash = require('./util/authenticationHashing');
 const Status = require('./Status');
 const debug = require('debug')('obs-websocket-js:Socket');