Implement WebSocket communication - FOR DECOMPOSITION

[BelAn97]

1. Find testing server (f.e.: https://www.websocket.org/echo.html ?) - any but used Trello as temporary solution (we need to find new one) - Find test server for WebSocket feature #313
2. Investigate webSocket libraries (Java-WebSocket, nv-websocket-client, etc) - Tyrus library has been selected - Investigate webSocket libraries #295
   2.1 Make feature planning - NO
3. Add project module for webSocket - Add project module for webSocket #314
4. Implement webSocket factory - Implement webSocket factory #315
5. Implement sender and listener - Done but not merged to master - Implement sender and listener #316
6. Create tests - Cover webSocket feature support with tests #317
7. Create docs - Create documentation for WebSocket feature support #318
8. update docs for websocket update docs for websocket #446

[BelAn97]

update docs for websocket #446