fix(core): update

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartsocket',
-  version: '2.0.20',
+  version: '2.0.21',
   description: 'easy and secure websocket communication'
 }

ts/index.ts

@@ -5,3 +5,6 @@ export * from './smartsocket.classes.smartsocketclient.js';
 // export further classes and objects
 export * from './smartsocket.classes.socketfunction.js';
 export * from './smartsocket.classes.socketconnection.js';
+
+// export types so they can be referred to
+export * from './interfaces/index.js';