Websockets API

[MicrowaveDev]

Websockets needs for realtime applications and dynamical information.
For beginning - make the possibility of updating the charts of the explorer using web sockets. But in the future need to be able to receive updates on all dynamic objects and collections.

[hleb-albau]

Hi @Jonybang. We definitely will provide ws enpoint in future. Could u, please, add more concrete cases, what api exposed by ws you expect to see. It will help us define better api.